SK Telecom Co., Ltd. Patent applications |
Patent application number | Title | Published |
20160050625 | METHOD AND APPARATUS FOR DISCONTINUOUS TRANSMISSION/RECEPTION OPERATION FOR REDUCING POWER CONSUMPTION IN CELLULAR SYSTEM - Provided is a method and apparatus for discontinuously transmitting/receiving packets for low-power consumption of a terminal in a cellular system for packet transmission. The present research provides a method and apparatus that can perform a low-power consuming operation when a terminal is in active state in a cellular system. The method for discontinuously transmitting/receiving packet data to reduce power consumption of a terminal in a cellular system, including the steps of: a) establishing discontinuous reception/transmission (DRX/DTX) parameters including discontinuous DRX/DTX cycle information for terminals operating in a transmission suspension mode, which is a sub-state of an active state; and b) performing DRX/DTX based on the DRX/DTX parameters in the terminals operating in the transmission suspension mode. | 02-18-2016 |
20140307788 | METHOD AND APPARATUS FOR ENCODING AND DECODING VIDEO USING SKIP MODE - A video encoding apparatus includes: an inter prediction unit to determine a motion parameter of a current block and generate a predicted block of the current block, by performing a motion estimation on the current block; and an optimal mode determining unit to set a prediction mode of the current block as a SKIP mode when (i) the motion parameter of the current block is identical to a motion parameter of a candidate block among a plurality of candidate blocks and (ii) all-zero coefficients result from a transform and a quantization performed on a residual data block representing the difference between the current block and the predicted block. | 10-16-2014 |
20140286392 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE BY USING ADAPTIVE LOOP FILTER ON FREQUENCY DOMAIN USING CONVERSION - A video encoding method for reducing encoding error by using a loop filter is provided, the method including: generating a reconstructed image from encoded data of an original image; determining one or more regions on which the loop filter is applied in the reconstructed image; transforming the original image and the reconstructed image which correspond to each region of the determined one or more regions from a spatial domain into a frequency domain; determining loop filter coefficients for said each region by comparing the transformed original image and the transformed reconstructed image; loop-filtering the reconstructed image based on the loop filter coefficients for said each region; and encoding information on the loop filter coefficients for said each region. | 09-25-2014 |
20140269916 | METHOD AND APPARATUS FOR VIDEO ENCODING/DECODING USING IMPROVED MERGE - A video encoding apparatus includes an inter predictor to check for availability of merge candidates configured from neighboring blocks of a current block, add into a merge candidate set, as one of the merge candidates, a combined bi-predictive motion parameter with respect to an unavailable block, the combined bi-predictive motion parameter generated by combining a list 0 motion parameter of a first available andidate block and a list 1 motion parameter of a second available candidate block, when the unavailable block is checked to be present among the merge candidates, and predict the current block by using a motion parameter corresponding to a merge candidate selected from the merge candidates including the combined bi-predictive motion parameter, to thereby generate a predicted block for the current block. | 09-18-2014 |
20140269512 | APPARATUS AND METHOD FOR SUPPORTING DATA TRANSMISSION SERVICE OVER MULTIPLE NETWORKS - A transmitting device includes a communication unit to transmit data through two or more networks including a first network and a second network, and a transmission controller to control the communication unit to transmit data to a receiving device through the first network, and transmit the data, which is to be transmitted to the receiving device through the first network, to the receiving device through the second network in response to a message from the receiving device indicating a data roundabout transmission request state of the receiving device with respect to the first network. | 09-18-2014 |
20140258476 | FILE TRANSMISSION TO COMMUNICATION-DISABLED TERMINAL - An apparatus for transmitting a file to a terminal device in a communication-disabled state includes a transceiver unit includes: a transceiver unit to transmit and receive data; a storage unit to store therein file information on a file uploaded to a content server by a transmitting terminal device using a first protocol; and a control unit to receive the file information from the transmitting terminal device through the transceiver unit using a second protocol, deliver the received file information to a receiving terminal device using the second protocol, store the file information in the storage unit when a predetermined time elapses without a response from the receiving terminal device, and transmit the stored file information to the receiving terminal device through the transceiver unit when the receiving terminal device enters into a communication-enabled state. | 09-11-2014 |
20140258430 | SERVER, DEVICE AND RECORDING MEDIUM FOR HTTP FILE TRANSFER DURING CHATTING SESSION ESTABLISHED BY ANOTHER PROTOCOL - A message server for transferring a file by using hypertext transfer protocol (HTTP) during a chatting session established by another protocol, includes: a server transceiver unit configured to transmit and receive data; and a server control unit configured to provide a chatting service by establishing the chatting session between a transmitting terminal device and a receiving terminal device through the server transceiver unit, and transmit file link information to the receiving terminal device through the server transceiver unit when the file link information is received from the transmitting terminal device through the server transceiver unit, wherein the file link information is associated with a file uploaded using HTTP to a content server by the transmitting terminal device. | 09-11-2014 |
20140254686 | METHOD AND APPARATUS FOR PREDICTIVE ENCODING/DECODING OF MOTION VECTOR - A video encoding apparatus for predicting a motion vector of a current block to be encoded is to determine one or more representative blocks from neighboring blocks of the current block according to priorities of the neighboring blocks; and encode the motion vector of the current block by using, as a predicted motion vector of the current block, a first motion vector selected from motion vectors of the determined one or more representative blocks and a second motion vector of at least one block within a reference picture. | 09-11-2014 |
20140254684 | METHOD AND APPARATUS FOR EFFECTIVE ENCODING/DECODING USING DETAILED PREDICTIVE UNIT - An apparatus for encoding images includes: a predictor to determine a prediction unit (PU) mode among a plurality of PU modes indicating types of partition of a current coding unit (CU) into one or more prediction units (PUs), and generate a predicted block of the current CU by performing an intra prediction or an inter prediction for each PU of the determined PU mode, wherein a size of the current CU is 2N×2N, and the plurality of PU modes includes 2N×hN or hN×2N PU mode in which the current CU is partitioned into PUs respectively having a size of 2N×hN or hN×2N, h being a fractional number smaller than 1; a subtractor to subtract the predicted block from the current CU to generate a residual block; a transformer to transform the residual block into a frequency domain to generate a frequency one or more transform blocks. | 09-11-2014 |
20140250197 | CONTENT SERVER, TERMINAL, AND METHOD USING HTTP - The present disclosure relates to a file transfer system, server, terminal, and method using a hypertext transfer protocol (HTTP). A content server uploads a file from a transmitting terminal using an HTTP, and file link information on the uploaded file is transmitted to the transmitting terminal. The transmitting terminal transmits the file link information to a receiving terminal through a message server, and the receiving terminal downloads a corresponding file using the file link information. According to the present disclosure, since the receiving terminal efficiently downloads a file, based on a network environment or a resource state of the receiving terminal. | 09-04-2014 |
20140247740 | APPARATUS AND METHOD FOR SUPPORTING SIMULTANEOUS DATA TRANSMISSION SERVICE OVER MULTIPLE NETWORKS - A transmitting device includes a partial data selector to select partial data divided from data to be transmitted over each of access networks based on a data transmission rate of each of the access networks; an identification information insertion unit to respectively insert identification information for measuring a data reception time interval into two or more partial data among the partial data selected for a particular access network of the access networks; a communication unit to transmit the two or more partial data with the inserted identification information to a receiving device through the particular access network; and a controller to acquire transmission state information of the particular access network based on at least one of a data transmission time interval and a data reception time interval. | 09-04-2014 |
20140204839 | DEVICE AND METHOD FOR CONCURRENT CALL AVOIDANCE - Disclosed herein are a terminal device including: a state determining unit to determine a connection state of a voice call or a data call at a specific time prior to a transfer period of a keep-alive message designated to a specific application; and an application interworking unit to transfer the keep-alive message through the data call according to the determined connection state of the voice call or the data call to notify of a driving state of the specific application. | 07-24-2014 |
20140185675 | APPARATUS AND METHOD FOR IMAGE ENCODING/DECODING USING PREDICTABILITY OF INTRA-PREDICTION MODE - An apparatus and a method for video encoding/decoding using predictability of an intra-prediction mode are disclosed. The apparatus for encoding a video of the present disclosure includes: an intra-prediction mode determiner for determining an encoder prediction mode which is an intra-prediction mode of a current block of the video; an encoder for encoding a residual block generated by subtracting, from the current block, a predicted block generated by predicting the current block according to the encoder prediction mode; a mode information generator for generating mode information according to whether or not a video decoding apparatus is able to predict the encoder prediction mode; and an encoded data generator for generating encoded data including the encoded residual block and the mode information. The present disclosure can enhance compression in video encoding/decoding by using intra-prediction to predict the video with a minimum necessary bit rate. | 07-03-2014 |
20140173272 | CLOUD STORAGE SYSTEM, DATA ENCRYPTION PROCESSING DEVICE AND DATA ENCRYPTION METHOD IN CLOUD STORAGE SYSTEM - A cloud storage system includes a plurality of cloud storage modules for storing and managing data and a data encryption processing device. The data encryption processing device includes a priority manager for managing priorities on encrypting data of a plurality of cloud storage modules by using information on whether encryption processing for each of the plurality of the cloud storage modules is supported; and an encryption requester for selecting at least one cloud storage module on the basis of the priorities managed by the priority manager when receiving request of a data encryption, and performing, by the selected at least one cloud storage module, encryption after delivering the data to the selected cloud storage module. | 06-19-2014 |
20140169229 | SERVER, SYSTEM, AND METHOD THAT PROVIDING ADDITIONAL CONTENTS - Disclosed is a server, a system, and a method for providing additional content simultaneously with main content. The system includes: a server for multiplexing a second content with a first content which is streaming-transmitted, and streaming-transmitting, to a terminal, a mixed content produced by multiplexing the second content with the first content; and the terminal for receiving the mixed content, demultiplexing the mixed content to separate the second content from the first content, streaming-reproducing the first content, and storing the separated second content therein. Accordingly, the system does not need a configuration of another system for providing additional content, which presents separate conditions for providing the additional content and determines if the separate conditions are satisfied. Namely, if a condition for receiving only a particular period of the particular content is satisfied, a user of the terminal can receive and use the additional content along with the particular content. | 06-19-2014 |
20140156822 | METHOD OF REQUEST ROUTING RE-DIRECTION WITH LOOP DETECTION AND PREVENTION - A method of request routing redirection includes: receiving, by a first content delivery network (CDN) among a plurality of CDNs connected by CDN interconnection (CDNi), a domain name system (DNS) request including a list of CDN-provider-identifications (IDs) of higher CDNs, from a client; determining whether the client's request is processable; and when the client's request is not processable, redirecting the request, while preventing a loop of the request routing on the basis of the list of the CDN-provider-IDs. | 06-05-2014 |
20140133564 | ENCODING/DECODING APPARATUS AND METHOD USING FLEXIBLE DEBLOCKING FILTERING - A video decoding method includes decoding a bitstream including generating a quantized frequency transform block from the bitstream, reconstructing a residual block by inversely quantizing and inversely transforming the quantized frequency transform block, generating a prediction block by predicting a current block to be reconstructed, reconstructing the current block by adding the generated prediction block to the reconstructed residual block and performing a deblocking filtering with respect to a boundary between subblocks within a frame including the reconstructed current block, by allowing numbers of filtered pixels in a first block of the subblocks and a second block of the subblocks that engage in the filtering to be different depending on one or more predetermined criterion. | 05-15-2014 |
20140112392 | APPARATUS AND METHOD FOR CODING AND DECODING IMAGE - A video encoding apparatus includes: a parameter calculator to calculate a brightness compensation parameter based on one or more first pixels adjacent to a current block and one or more second pixels adjacent to a motion prediction block obtained by using a prediction motion vector, the one or more second pixels being located in locations corresponding to the one or more first pixels; a target pixel selector to select one or more target pixels for a brightness compensation from pixels in a prediction block determined by a motion vector of the current block, by using pixels adjacent to the motion prediction block; and a predictive encoder to generate a compensated prediction block of the prediction block by applying the brightness compensation parameter to the selected one or more target pixels and to perform a predictive encoding on the generated compensated prediction block. | 04-24-2014 |
20140106796 | PUSH SERVICE PROVIDING SYSTEM AND METHOD FOR BALANCING MESSAGE LOADS - A push service device for balancing message loads includes: a service provider (SP) interworking unit to connect with a service providing device; a controller to route a push message received from the service providing device through the SP interworking unit to one or more corresponding client devices; and a client interworking unit to transmit the push message transferred from the controller to the one or more corresponding client devices, to receive a keep-alive message from at least one of the one or more corresponding client devices, and to transmit a keep-alive configuration message to the one or more corresponding client devices to disperse reception time points of the keep-alive message for a predetermined transmission period of the keep-alive message when the reception time points of the received keep-alive message are synchronized. | 04-17-2014 |
20140105284 | METHOD AND APPARATUS FOR CODING/DECODING THROUGH HIGH-SPEED CODING UNIT MODE DECISION - An apparatus for encoding a video includes: a predictor to predict a current block by using a plurality of prediction unit types and generate one or more predicted blocks; a subtracting unit to generate a residual block by the subtracting the predicted blocks from the current block; a transformer to generate a frequency transform block by transforming the residual block; a quantizer to generate a quantized frequency transform block by quantizing the frequency transform block; and an encoder to encode the quantized frequency transform block into a bitstream. When the quantized frequency transform block for one of the prediction unit types has all zero coefficients, the predictor terminates predicting the current block by using the remainder of the prediction unit types and determines the prediction unit type with said all zero coefficients as the prediction unit type for the current block. | 04-17-2014 |
20140095711 | SYSTEM, DEVICE AND METHOD FOR MANAGING NETWORK TRAFFIC BY USING MONITORING AND FILTERING POLICIES - Disclosed herein are a system for managing network traffic by using monitoring and filtering policies, including: a network traffic managing device to manage network traffic by (i) creating a monitoring policy and a filtering policy and (ii) transmitting the created monitoring policy and the created filtering policy to a user terminal device; and a traffic control device to detect packets generated in one or more applications of the user terminal device, according to the one or more applications or one or more destination addresses based on the monitoring policy received from the network traffic managing device, create and transmit traffic statistical information on the detected packets to the network traffic managing device, and filter the packets according to the filtering policy received from the network traffic managing device at a kernel area of the user terminal device. | 04-03-2014 |
20140093845 | EXAMPLE-BASED ERROR DETECTION SYSTEM FOR AUTOMATIC EVALUATION OF WRITING, METHOD FOR SAME, AND ERROR DETECTION APPARATUS FOR SAME - An error detection system for automatically evaluating writing includes: an example construction apparatus to collect example sentences including various literary styles, to break up the collected example sentences in units of morphemes, and to construct the example sentences in an example-based index database (DB); and an error detection apparatus to break up an input sentence in units of morphemes, to generate one or more morpheme sequences bound in arbitrary window sizes based on one or more of morphemes of the broken-up input sentence, to search the example-based index DB for each of the generated morpheme sequences, and to detect an error according to a frequency at which said each morpheme is arranged in a corresponding morpheme sequence among morpheme sequences searched for through the example-based index DB. | 04-03-2014 |
20140092890 | DEVICE AND METHOD FOR PROVIDING SIMULTANEOUS DATA TRANSMISSION SERVICE OVER HETEROGENEOUS NETWORKS - Disclosed are a device and a method for providing simultaneous data transmission service based on heterogeneous networks. A transmission device of system for simultaneous data transmission service system is configured to (i) divide data into two or more partial data, (ii) insert virtual network access information into each of the divided two or more partial data, and (iii) then transmit the divided two or more partial data to a reception device over two or more networks in a heterogeneous network. When a problem occurrence is identified in a first network of the two or more networks, the transmission device is configured to switch the first network to another second network of the two or more networks to transmit the divided two or more partial data intended to be transmitted over the first network. | 04-03-2014 |
20140092810 | TRANSMISSION DEVICE, RECEPTION DEVICE FOR PROVIDING SIMULTANEOUS DATA TRANSMISSION SERVICE AND METHOD THEREOF - Disclosed are a transmission device, a reception device and a method for providing a simultaneous data transmission for a data session through a plurality of heterogeneous networks. The transmission device divides particular data to be transmitted into two or more partial data, transmits first partial data after inserting first tunneling information which induces the first partial data to pass through a first network of two or more networks into the first partial data, and transmits second partial data of the two or more partial data after inserting second tunneling information which induces the second partial data to pass through a second network of the two or more networks into the second partial data. | 04-03-2014 |
20140073323 | SIMULTANEOUS DATA TRANSMISSION METHOD BASED ON MULTIPLE NETWORKS, AND APPARATUS THEREFOR - Disclosed is a relay for a simultaneous data transmission using multiple networks including: a connection control unit configured to control a terminal equipment to connect to multiple networks, when sensing entrance of the terminal equipment currently connected with a macro base station of the mobile communication network into simultaneous transmission service coverage serviced by the multiple networks, at least one of the multiple networks including at least one micro base station; and a relay processing unit configured to partition data transmitted or received to/from the terminal equipment into partial data corresponding to each of the multiple networks, and transmit and/or receive the partitioned partial data through each of the multiple networks. | 03-13-2014 |
20140067379 | AUTOMATIC SENTENCE EVALUATION DEVICE USING SHALLOW PARSER TO AUTOMATICALLY EVALUATE SENTENCE, AND ERROR DETECTION APPARATUS AND METHOD OF THE SAME - An automatic sentence evaluating device using a shallow parser. A simple grammatical error and an error in sentence structure are detected by generating a string of parts of speech using n-gram for a composed input sentence and parsing the generated string of parts of speech on the basis of a rule (shallow parsing) defined according to a connective relationship between adjacent parts of speech, and a corrected draft is proposed for the detected errors to thereby increase accuracy of sentence evaluation, and an error detection apparatus and a method for the same. | 03-06-2014 |
20140047065 | SYSTEM, DEVICE AND METHOD FOR PROVIDING PUSH SERVICE USING FEEDBACK MESSAGE - Disclosed are a system for providing a push service using a feedback message including: a service providing device to transmit a push message to a client device and receive a feedback message with respect to the transmitted push message; and a push service device to receive the push message from the service providing device and transmit the push message to the client device, store the feedback message when the push message transmitted to the client device fails and a connection with the service providing device is disconnected, and transmit the stored feedback message to the service providing device. | 02-13-2014 |
20140040380 | SYSTEM AND METHOD FOR PROVIDING PUSH SERVICE FOR REDUCING NETWORK LOADS - Disclosed are a system for providing a push service including: a client device to receive a push message provided by a service providing device and provide a push service; and a push service device configured to transmit the push message provided by the service providing device to the client device, wherein at least one of the client device and the push service device is configured to attempt a reconnection mutually according to a predetermined reference, when a connection between the client device and the push service device is terminated. | 02-06-2014 |
20130315311 | IMAGE ENCODING/DECODING DEVICE AND METHOD, AND REFERENCE PICTURE INDEXING DEVICE AND METHOD - The present disclosure provides an image encoding/decoding apparatus and method, and a reference picture indexing apparatus and method. The reference picture indexing apparatus includes: a candidate reference picture setting unit for setting candidate reference pictures; a priority order determining unit for determining a priority order of the candidate reference pictures set by the candidate reference picture setting unit, according to a current block to be encoded; and a reference picture indexing unit for adaptively indexing a reference picture according to the current block based on the priority order determined by the priority order determining unit. | 11-28-2013 |
20130315302 | METHOD AND APPARATUS FOR CODING/DECODING IMAGE - The present disclosure provides an apparatus for encoding a video including: a prediction unit to generate a predicted block of a current block; a subtraction unit to generate a residual block by subtracting the predicted block from the current block; a transformer to transform the residual block into a frequency transform block by performing different transform methods on different transform units; a quantization unit to quantize the frequency transform block to generate a quantized frequency transform block; and a bitstream generator to encode the quantized frequency transform block into a bitstream. | 11-28-2013 |
20130315299 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE USING VARIABLE SIZED MACROBLOCKS - A video encoding apparatus includes a candidate block type configuration unit for configuring block type candidates for encoding an image by using variable sized macroblocks; a video encoder for encoding an input image for each block type candidate; and a block type determiner for determining a block type based on encoding costs by the block type candidate, and generating a bitstream including image data encoded by the determined block type and information for the determined block type. Determining the block type to match the image characteristics enables combinations of diverse modes such as a large block and macroblock size, a minimum subblock size, available divisional block type, prediction mode type within a macroblock, and so on to achieve more effective encoding and decoding of high resolution images. | 11-28-2013 |
20130301717 | INTRA PREDICTION METHOD AND APPARATUS, AND IMAGE ENCODING/DECODING METHOD AND APPARATUS USING SAME - The present disclosure relates to an intra prediction method and apparatus and an image encoding/decoding method and apparatus using the same. The disclosure provides the intra prediction apparatus that predicts the pixel values of respective pixels in a current block by weight-averaging the pixel values of one or more adjacent pixels in neighboring blocks to the current block according to the distances between each pixel in the current block and the adjacent pixel(s). According to the disclosure, the current block to be encoded can be predicted more accurately so that the encoding efficiency is improved by reducing the difference between the original block and the predicted block, and thereby video compression efficiency can be improved. | 11-14-2013 |
20130301714 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE FOR PERFORMING INTRAPREDICTION USING PIXEL VALUE FILTERED ACCORDING TO PREDICTION MODE - A video encoding apparatus, a video decoding apparatus and video decoding method are provided. The video decoding apparatus includes:
| 11-14-2013 |
20130290466 | METHOD OF PROVIDING CONTENT DURING HAND-OVER AND APPARTUS THEREFOR - The present invention relates to a method and apparatus for providing mobile content to seamlessly transmit content to a mobile node even during a hand-over of the mobile node through local caching devices distributed in a mobile network. | 10-31-2013 |
20130290390 | METHOD AND DEVICE FOR INPUTTING EQUATION - The present disclosure relates to a method and apparatus for inputting equations. An equation input apparatus includes a learning context recognizer for extracting learning context information regarding a learner; a target equation group extractor for generating a target equation group including target mathematical symbols based on the extracted learning context information; and a predicted equation provider for providing a predicted mathematical symbol list relating to information, input or selected from the target equation group by user command, and for reflecting an equation selected from the predicted mathematical symbol list in the input or selected information. | 10-31-2013 |
20130287097 | METHOD AND DEVICE FOR DEBLOCKING-FILTERING, AND METHOD AND DEVICE FOR ENCODING AND DECODING USING SAME - An encoding apparatus for encoding a video signal includes: a prediction unit for generating a prediction block of a current block by using intra prediction or inter prediction; a residual data encoding unit for generating a residual block by using the current block and the prediction block, and transforming and quantizing the residual block; a residual data decoding unit for decoding a transformed and quantized residual block by inversely quantizing and inversely transforming the transformed and quantized residual block; and a deblocking filter unit for generating a reconstructed block by using a decoded residual block and the prediction block, and performing deblocking filtering, based on inter prediction information and intra prediction information of the reconstructed block and blocks neighboring the reconstructed block. The intra prediction information includes at least one of an intra prediction mode and an intra prediction block size. | 10-31-2013 |
20130282855 | CACHE DEVICE, CACHE CONTROL DEVICE, AND METHODS FOR DETECTING HANDOVER - For a user terminal connected to one of cache devices distributed in a network and receiving contents, terminal access information including terminal address information about the user terminal and identification information of the cache device is stored and managed. If a content retransmission request message of the user terminal is detected at other cache device, this is regarded as a handover of the user terminal. This allows a simple detection of handover that occurs during content transmission. | 10-24-2013 |
20130272387 | METHOD AND DEVICE FOR SUBBAND CODING FREQUENCY CONVERSION UNIT, AND METHOD AND DEVICE FOR IMAGE ENCODING/DECODING USING SAME - The present disclosure provides a method and apparatus for subband-coding a frequency conversion unit and a video encoding/decoding method a video encoding/decoding apparatus using the same. The method and the apparatus for subband-coding the frequency conversion unit include generating an encoding stream by splitting the frequency conversion unit into one or more frequency domains, generating frequency domain encoding information according to whether there is a non-zero frequency coefficient in each frequency domain, scanning the frequency coefficient of each frequency domain to generate a frequency domain frequency coefficient stream, and binarizing and encoding the frequency domain encoding information and the scanned frequency domain frequency coefficient stream. | 10-17-2013 |
20130262766 | Cache Synchronization System, Cache Synchronization Method and Apparatus thereof - Disclosed are a cache synchronization system, a cache synchronization method and a local cache to perform synchronization. The local cache is configured to determine whether to perform synchronization for specific content on the basis of synchronization policy information, if it is determined that synchronization is to be performed, to set a dispersion parameter that defines a synchronization range for the specific content according to the synchronization policy information, and to transmit synchronization information about the specific content, which includes the dispersion parameter, to at least one neighboring local cache. | 10-03-2013 |
20130260359 | APPARATUS AND METHOD FOR DIAGNOSING LEARNING ABILITY - The present disclosure relates to an apparatus and method for diagnosing a learning ability. The apparatus for diagnosing learning ability includes a receiving unit configured to receive from a terminal chapter-related information or problem-related information which is desirably diagnosed by a learner, and a semantic information generator configured to generate, responsive to each piece of problem information included in the chapter-related information or problem-related information, semantic information with structural information of the problem information, the problem information having subject-specific problem information distinguished from the semantic information. | 10-03-2013 |
20130259128 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGES TO MINIMIZE REDUNDANCY OF INTRA-PREDICTION MODE - A video encoding apparatus encodes intra-prediction mode information of the current block by excluding information on overlapping or unnecessary intra-prediction modes from a candidate mode group and/or based on whether predicted values of intra-prediction modes of at least a preset number of subblocks are matched with actual intra-prediction modes. | 10-03-2013 |
20130259126 | METHOD AND APPARATUS FOR VIDEO ENCODING/DECODING OF ENCODING/DECODING BLOCK FILTER INFORMATION ON THE BASIS OF A QUADTREE - In a video encoding and/or decoding apparatus and/or method, a video encoder partitions a reference image predicted block-wise with at least a filter into blocks in at least one layer, sets a partitioning flag to indicate whether each of the partitioned blocks is subdividable into sub-blocks, sets a filter type to indicate which filter was used for interpolating each of the blocks or sub-blocks, and quadtree-encodes the partitioning flag and the filter type together with the corresponding block or sub-block to generate a quadtree-encoded bitstream. A video decoder reads the partitioning flags and the filter types from the quadtree-encoded bitstream to reconstruct the partitioning flags and the filter types for the corresponding blocks or sub-blocks, generates the blocks or sub-blocks based on the corresponding partitioning flags, and interpolates the generated blocks or sub-blocks on the basis of the corresponding filter types to reconstruct the reference image. | 10-03-2013 |
20130238553 | CLOUD COMPUTING SYSTEM AND DATA SYNCHRONIZATION METHOD - A cloud computing system includes a plurality of small medium business (SMB) network system and a cloud hosting and storage system. Each of the SMB network systems includes a plurality of first client terminals and a physical network-attached storage (NAS) configured to store one or more original files accessible by at least one of the first client terminals. The cloud hosting and storage system is configured to generate a virtual NAS corresponding to the physical NAS in accordance with one or more requests for cloud hosting service made by the physical NAS through a network, and allocate a virtual storage space for the SMB network system. The virtual storage space is configured to store one or more backup files of the original files stored in the physical NAS. | 09-12-2013 |
20130235863 | APPARATUS AND METHOD OF MANAGING PERIPHERAL WIRELESS LAN RADIO SIGNAL FOR POSITIONING SERVICE - The present disclosure relates to providing a positioning service by managing a plurality of peripheral wireless LAN signals. The positioning service system collects peripheral wireless LAN radio signals by scanning peripheral access points (APs), stores AP information of each of peripheral wireless LAN radio signals in each lattice cell of a database. When a positioning request signal is received from a terminal, a positioning server of the positioning service extracts AP identification information from included in the peripheral wireless LAN radio signal received from the terminal. By using the extracted AP identification information, the positioning server selects from the database the corresponding lattice cell matching to the stored AP identification information of each of the peripheral wireless LAN radio signals pre-stored. And the positioning server estimates location information of the selected corresponding lattice cell as location information for the terminal. | 09-12-2013 |
20130235749 | METHOD DEVICE AND SYSTEM FOR ESTIMATING ACCESS POINTS USING LOG DATA - The present disclosure provides a system, device and method for estimating an AP location using log data. Information, which is not pre-stored in a database when the information is updated, is classified and then location information of an AP is estimated by using log data of a user in such a manner of estimating a location of the AP by using log data of a user in wireless LAN based positioning and thus updating the database for the wireless LAN based positioning, thereby improving positioning accuracy. | 09-12-2013 |
20130230106 | METHOD AND DEVICE FOR ENCODING/ DECODING IMAGE HAVING REMOVABLE FILTERING MODE - A video encoding/decoding method and apparatus that may omit a filtering mode is provided. The video encoding/decoding method and apparatus may determine whether to perform filtering on the intra-predicted image for the purpose of obtaining a natural intra-predicted image by using a characteristic of neighboring pixels or an intra-predicted image and thus, may omit additional information for indicating whether filtering is required and improves the performance of compression. | 09-05-2013 |
20130230105 | INTRA-PREDICTION ENCODING/DECODING APPARATUS AND METHOD FOR OMITTING THE TRANSMISSION OF PREDICTION MODE INFORMATION USING CHARACTERISTICS OF REFERENCE PIXELS - An intra-prediction encoding/decoding apparatus and method is provided that omits transmission of prediction mode information using characteristics of reference pixels. The present disclosure provides an intra-prediction encoding apparatus and method for omitting transmission of additional information of a predicted mode of the current block through the use of characteristics of reference pixels adjacent to a current block and thereby reducing overhead when a bitstream is generated, and improving the efficiency of encoding and decoding an image while maintaining the accuracy of intra-predictions. | 09-05-2013 |
20130230104 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGES USING THE EFFECTIVE SELECTION OF AN INTRA-PREDICTION MODE GROUP - A video encoding/decoding method and apparatus select a prediction mode set based on neighboring pixels and, in some embodiments, obviate the need to encode additional information for selecting a prediction mode set and thereby improve the performance of compression. | 09-05-2013 |
20130226573 | NOISE REMOVING SYSTEM IN VOICE COMMUNICATION, APPARATUS AND METHOD THEREOF - Disclosed is the system and method to remove noises in voice signals in a voice communication. The at least one embodiment of the present disclosure performs a spectral subtraction (SS) for voice signals based on a gain function by a spectral subtraction apparatus, performs clustering of voice signals consecutive on a frequency axis of a spectrogram for the voice signals in which the spectral subtraction has been already performed to designate one or more clusters, and extracts musical noises by determining continuity of each of the designated clusters on the frequency axis and a time axis of the spectrogram to extract to musical noises. | 08-29-2013 |
20130217394 | Multi-Mode Mobile Communication Terminal and Mode Switching Method Thereof - Disclosed is a multi-mode multi-band mobile communication terminal and a mode switching method thereof wherein a mode switching can be performed between an asynchronous network and a synchronous network by minimizing interruption in communication. According to the switching method of a multi-mode multi-band mobile communication terminal, the power of a signal received from an asynchronous network or a synchronous network is measured and the measured power of the received signal drives a modem portion, thereby switching the mode of the mobile communication terminal. | 08-22-2013 |
20130216995 | METHOD, APPARATUS AND SYSTEM FOR LEARNING PLAN ANALYSIS - The present invention relates to a method, apparatus and system for learning plan analysis. According to one embodiment of the present invention, the method for learning plan analysis includes: providing a learner with learning materials commensurate with a learning progress or learning ability; receiving learning information responsive to the learning materials; and generating analysis data from analyzing interaction patterns of a user in learning. | 08-22-2013 |
20130215960 | DEVICE AND METHOD FOR COMPETITION-BASED INTRA PREDICTION ENCODING/DECODING USING MULTIPLE PREDICTION FILTERS - An intra prediction encoding apparatus includes: an optimal filter selecting unit for providing a plurality of extrapolation prediction filter candidates for filtering pixels adjacent to a current block to be encoded, with respect to each intra prediction direction or prediction mode of the current block, and selecting a filter having lowest encoding cost among the plurality of extrapolation prediction filter candidates; a residual signal generating unit for generating an extrapolation prediction value of the current block through the filter selected by the optimal filter selecting unit, and generating a residual signal by calculating a difference between a generated extrapolation prediction value of the current block and a pixel value of the current block; a transform and quantization unit for performing transform and quantization on the residual signal generated by the residual signal generating unit; and an entropy encoding unit for performing entropy encoding on a transformed and quantized residual signal. | 08-22-2013 |
20130215958 | ENCODING AND DECODING DEVICE AND METHOD USING INTRA PREDICTION - The present disclosure relates to encoding and decoding apparatus and method using intra prediction. The encoding apparatus includes a reference pixel characteristics extractor for receiving reference pixel(s) included in neighboring blocks of a target block to encode to determine a reference pixel characteristic and determining whether adaptive filtering is applied to the reference pixel(s), based on reference pixel characteristic; a first intra predictor responsive to when the adaptive filtering is determined by the reference pixel characteristics extractor to be applied for comparing between results of performing intra prediction using high-frequency filtered reference pixel and intra prediction using high-frequency-unfiltered reference pixel to output the cost-efficient result along with filtering information indicating whether to perform filtering; and a second intra predictor for outputting the result of performing the intra prediction using the high-frequency-unfiltered reference pixel when the reference pixel characteristics extractor determines that the adaptive filtering is not to be applied. | 08-22-2013 |
20130204409 | BUILDING MANAGEMENT SERVER AND BUILDING ILLUMINATION CONTROL METHOD - The disclosure relates to automatically controlling illumination in a building, by recognizing a user ID, detecting the entry into and exit from a building by checking the recognized user ID, checking an illumination list in association with the user ID, and controlling one or more lights in the illumination list. | 08-08-2013 |
20130202047 | APPARATUS AND METHOD FOR VIDEO ENCODING/DECODING - A video encoding/decoding apparatus includes a video encoder and a video decoder. The video encoder is configured to set up motion vector resolutions differentiated by search areas centered on a prediction motion vector of a current block, perform a motion estimation with a resolution corresponding to each of the search areas to generate a motion vector, and encode a differential motion vector between the generated motion vector and the prediction motion vector. The video decoder is configured to extract the differential motion vector from a bitstream, and decode the extracted differential motion vector with a resolution corresponding to a search area where the differential motion vector belongs to among the search areas. | 08-08-2013 |
20130202039 | METHOD AND DEVICE FOR ENCODING/DECODING IMAGE USING EXTENDED SKIP MODE - A method and apparatus for encoding/decoding an image by using an extended skip mode are provided. The method includes setting a backward reference block motion vector with respect to an adjacent block of a current block as a predictive motion vector of the current block or determining a predictive motion vector from a forward reference block motion vector with respect to a block located in a backward reference picture at the same position as the current block, performing motion compensation by using the predictive motion vector, and setting a prediction mode when the motion compensation results in satisfaction of an optimal skip condition. | 08-08-2013 |
20130202030 | METHOD AND DEVICE FOR IMAGE ENCODING/DECODING USING BLOCK SPLIT PREDICTION - A video encoding/decoding method and apparatus using split prediction is provided. | 08-08-2013 |
20130195176 | METHOD AND DEVICE FOR ENCODING/DECODING IMAGE USING ADAPTIVE ENCODING/DECODING MODE INDEXING METHOD - A video encoding/decoding apparatus and method using adaptive encoding/decoding mode indexing are provided. A video encoding apparatus includes: a probability generation unit for calculating a probability of each encoding mode of blocks completely encoded before a current block; a bit assignment unit for assigning and indexing a bin string according to the probability of each encoding mode, which is calculated by the probability generation unit; and a video encoding unit for encoding an encoding mode of the current block, based on the bin string assigned by the bit assignment unit, when the current block is encoded. | 08-01-2013 |
20130194976 | COMMUNICATION SYSTEM, PACKET NETWORK, SUPPLEMENTARY SERVICE CONTROLLER, AND METHOD FOR PROVIDING SUPPLEMENTARY SERVICES - The disclosure relates to providing supplementary services by interworking a packet network and a circuit network and sharing resources used to provide supplementary services therebetween. | 08-01-2013 |
20130188508 | POSITIONING DEVICE OF MOBILE COMMUNICATION TERMINAL, METHOD FOR CONSTRUCTING WIRELESS LAN INFORMATION OF DEVICE, POSITIONING SERVER OF MOBILE COMMUNICATION TERMINAL, AND METHOD FOR DRIVING SERVER - Embodiments of the disclosure concern a mobile terminal positioning apparatus, method for establishing wireless LAN information of the apparatus, mobile terminal positioning server, and method for operating the server wherein mobility of access point is determined by using positioning information provided at the request of mobile terminal positioning, updating wireless LAN information in wireless LAN server based on stationary access point to make it available to providing mobile terminal positioning service. Exemplary positioning apparatus includes access point for performing local wireless communications; node information-based server for managing wireless environment information of a node in charge of the mobile terminal communications; wireless LAN server; positioning server for calculating distance between the access point and node or between access point and mobile terminal, and if a certain distance is exceeded, determining the access point to be transportable and deletable, and providing the positioning result on stationary access point basis. | 07-25-2013 |
20130177006 | LOCATION AND STATE INFORMATION PROVIDING/INQUIRING SYSTEM USING NEAR FIELD COMMUNICATION, LOG INFORMATION PROVIDING/INQUIRING SYSTEM AND METHOD, SERVICE SERVER AND CUSTOMER TERMINAL, LOCATION AND STATE PROVIDING/INQUIRING METHOD - A location and state information providing/inquiring system using WLAN/WPAN communication, log information providing/inquiring system, service server, customer terminal, location and state information providing/inquiring method, and log information providing/inquiring method are disclosed. System for providing/inquiring location and state information by using WLAN/WPAN communication includes: mobile terminal including WLAN/WPAN communication module for acquiring and transmitting identification information of one or more WLAN/WPAN communication modules of one or more adjacent other terminals; service server for storing identification information of subscriber terminals, receiving identification information of WLAN/WPAN communication modules from mobile terminal, and transmitting list of service subscribers; and positioning server for positioning subscriber terminals of service subscribers, and if one or more service subscribers are selected by mobile terminal based on list received from service server, transmitting location and state information of terminals corresponding to service subscribers selected to mobile terminal. | 07-11-2013 |
20130172010 | METHOD FOR GENERATING IN-BUILDING PROPAGATION ENVIRONMENT MAPS AND DEVICE THEREFOR - An apparatus for generating in-building radiowave environment maps, includes: an in-building map providing unit configured to provide in-building map data to a radiowave measurement device; a reference point setting unit configured to interwork with the radiowave measurement device and set up a reference point of specific area in the in-building map data; a location estimating unit configured to estimate a mobile location of the radiowave measurement device by using motion sensor information received from the radiowave measurement device; a radiowave environment collecting unit configured to collect radiowave environment information from the radiowave measurement device; and an in-building radiowave environment mapping unit configured to generate an in-building radiowave environment map by storing the radiowave environment information onto the in-building map data matchingly with every piece of location estimation information on the mobile location estimated based on the reference point. | 07-04-2013 |
20130170484 | METHOD AND DEVICE FOR DISCRIMINATING POSITIONING ERROR USING WIRELESS LAN SIGNAL - Apparatus for determining a positioning error includes: database for storing grid cells separated by each pCell ID and WLAN environment information matched to grid cells; information receiving unit for receiving terminal WLAN environment information from mobile communication terminal; identification information checking unit for checking AP identification information included in terminal WLAN environment information; triangulating unit for calculating triangulation coordinate value by performing triangulation with AP position estimation information corresponding to AP identification information; grid cell positioning unit for selecting one or more grid cells corresponding to AP identification information and calculating grid cell coordinate value based on coordinate value corresponding to grid cell selected; and error determining unit for comparing triangulation coordinate value and grid cell coordinate value and determining whether there is positioning error in any one of triangulation coordinate value and grid cell coordinate value. | 07-04-2013 |
20130170383 | METHOD AND DEVICE FOR ESTIMATING AP POSITION USING A MAP OF A WIRELESS LAN RADIO ENVIRONMENT - The present disclosure concerns a method and apparatus for estimating AP position using WLAN radiowave environment map. An embodiment includes filter for generating filtering radiowave map with data selected exclusively for having common MAC address from collected WLAN radiowave environment maps; grid-cell divisor for generating grid radiowave map with arbitrary grid cells from dividing the filtering radiowave map; representative-coordinate mapper for calculating centroid of each of grid cells constituting grid radiowave map and mapping each centroid as representative coordinate to each grid cell; representative-signal-strength mapper for calculating representative signal strengths based on data in grid cell and mapping each representative signal strength to grid cell; weight-value sorter for sorting out weight value corresponding to a range covering representative signal strength as received; and position estimator for estimating positional information of APs having common MAC address based on one or more of representative coordinate, representative signal strength, and weight value. | 07-04-2013 |
20130170382 | METHOD AND DEVICE FOR UPDATING A DATABASE FOR WIRELESS LAN BASED POSITIONING - An apparatus for updating a database for wireless LAN based positioning includes a database for storing grid cells divided by pCell ID and base station-derived environment information and wireless LAN environment information matched to the grid cells; a grid cell determining unit for determining an information-unmeasured grid cell among the grid cells, the information-unmeasured grid cell being a grid cell that has unmeasured information among parameters of the wireless LAN environment information matched to the grid cells; an unmeasured parameter checking unit for checking an unmeasured parameter in the information-unmeasured grid cell; a radiowave environment estimating unit for generating radiowave environment estimation information by estimating the unmeasured information based on the unmeasured parameter checked; and a database updating unit for reflecting the radiowave environment estimation information in the information-unmeasured grid cell determined. | 07-04-2013 |
20130165150 | METHOD FOR MEASURING POSITION USING A POSITIONING ACCESS POINT, AND DEVICE, SYSTEM, AND ACCESS POINT FOR SAME - The present disclosure provides in some aspects a method for positioning by a positioning access point, and an apparatus, system and access point for the same. A positioning system includes an AP including a positioning AP for delivering a positioning WLAN signal containing a dedicated positioning information and a telecom AP for delivering a telecom WLAN signal; database for storing an identification information of the access point and a location information belonging to the AP and matching the identification information; terminal for communicating with the AP; and WLAN-based positioning server responsive to a positioning request from the terminal for comparing a parameter of a WLAN signal received from the terminal with an identification information of the positioning AP on a priority basis, and when there is a match of information, granting the location information of the relevant access point the highest priority to determine the location of the terminal. | 06-27-2013 |
20130136179 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE USING VARIABLE-SIZE MACROBLOCKS - The video encoding/decoding apparatus includes a video encoder for encoding macroblocks by each of prediction basic unit candidates, determining prediction basic units based on encoding costs for each of the prediction basic unit candidates, and generating a bitstream including image data encoded in determined prediction basic units, information on a prediction type for each of the determined prediction basic units, and prediction data depending on the prediction type; and a video decoder for extracting information on the prediction type for each of the prediction basic units, prediction data depending on the prediction type, and encoded image data from the bitstream, and generating a reconstructed image by decoding the encoded image data depending on the prediction type for each of the prediction basic units. | 05-30-2013 |
20130089264 | APPARATUS AND METHOD FOR ENCODING IMAGES, AND APPARATUS AND METHOD FOR DECODING IMAGES - Image encoding/decoding apparatus and method are disclosed. The image encoding apparatus includes: a target block splitter for splitting a target block of an input image to be encoded into a plurality of subblocks according to positions of pixels; a key block encoding unit for selecting a random key block, the size of which is larger than a pixel size of at least one of the plurality of subblocks split by the target block splitter, and performing an intra-prediction or inter-prediction encoding process on the selected key block; and a non-key block encoding unit for designating the rest of the subblocks, except for the selected key block, as a non-key block, and performing a spatial prediction process on the designated non-key block by using a key block reconstructed by the key block encoding unit and values of peripheral pixels of a current block. | 04-11-2013 |
20130073710 | APPARATUS FOR PROVIDING POLICY AND TERMINAL DEVICE FOR CHANGING NETWORK IN HETEROGENEOUS NETWORKS - Disclosed is a policy providing apparatus and a terminal device supporting an network change in heterogeneous networks. The terminal device accesses one network among two or more networks and uses a data service, and the policy providing apparatus recognizes service status information of the data service for the terminal device, generates a network change policy for inducing the terminal device to change the access network based on the recognized service status information, and provides the network change policy to the terminal device. Then, the terminal device determines whether it is possible to access a particular network required to be accessed based on the network change policy, and tries to access the particular network through the multi communication unit and changes the access network when it is possible to access the particular network. | 03-21-2013 |
20130070846 | MOTION VECTOR ENCODING/DECODING METHOD AND APPARATUS USING A MOTION VECTOR RESOLUTION COMBINATION, AND IMAGE ENCODING/DECODING METHOD AND APPARATUS USING SAME - The present disclosure provides a motion vector encoding/decoding method and apparatus using a motion vector resolution combination, and an image encoding/decoding method and apparatus using the same. A motion vector encoding apparatus include: an encoding cost calculator for calculating an encoding cost according to a motion vector resolution for each motion vector resolution combination including one or more motion vector resolutions; a resolution combination determiner for selecting a motion vector resolution combination by using the encoding cost calculated for each motion vector resolution combination; and a motion information encoder for outputting encoded motion vector data generated by encoding a motion vector determined according to the motion vector resolution combination selected, as a bitstream. Accordingly, an efficient motion vector resolution combination is selected adaptively and a motion vector is determined and decoded based on the motion vector resolution combination, thus making it possible to improve compression efficiency. | 03-21-2013 |
20130064293 | IMAGE ENCODING/DECODING DEVICE AND METHOD - A video encoding/decoding apparatus and method are disclosed. The video encoding/decoding apparatus includes: a video encoder for encoding a differential value between a quantization parameter value of a macroblock of a video and a quantization parameter value of a subblock in an extended macroblock based on additional information on the macroblock and the subblock; and a video decoder for reconstructing a differential value of a quantization parameter encoded by the video encoder, reconstructing a residual block based on a reconstructed differential value of the quantization parameter, and reconstructing the video based on the residual block reconstructed. | 03-14-2013 |
20130064292 | IMAGE CODING/DECODING DEVICE USING CODING BLOCK IN WHICH INTRA BLOCK AND INTER BLOCK ARE MIXED, AND METHOD THEREOF - A video encoding/decoding apparatus includes: a video encoder for dividing coding unit block into combination of subblocks of codable size, determining combination of inter blocks and intra blocks with respect to each subblock, determining encoding order of intra encoding blocks within coding unit considering referencing possibility of peripheral pixel values of current block to be intra-prediction encoded, bi-directional intra prediction encoding the current block in determined encoding order, and transmitting encoding mode/size information of subblocks after locating encoding mode/size information in front of a syntax of the coding unit; and a video decoder for restoring encoding mode/size information of subblocks within the coding unit by decoding encoded data, reconstructing inter prediction encoded blocks, based on restored encoding mode information, and determining decoding order of intra prediction mode blocks according to encoding mode/size information of each subblock within coding unit, and conditions on referencing possibility of peripheral blocks of coding unit. | 03-14-2013 |
20130059602 | LOCATION POSITIONING METHOD AND DEVICE USING WIRELESS LAN SIGNALS - A location positioning methoded device using a wireless LAN signal, comprising: a database that includes a first DB, which matches grid cells distinguished by pCell ID with partial wireless LAN-related information related to a wireless LAN signal and stores the matched information, and a second DB, which stores overall wireless LAN-related information related to the wireless LAN signal; an information reception unit that receives terminal wireless LAN-related information from a terminal, which performs communication by using the WLAN signal; a record determination unit; and a location positioning unit. | 03-07-2013 |
20130058401 | IMAGE-FILTERING METHOD AND APPARATUS, AND ENCODING/DECODING METHOD AND APPARATUS USING SAME - An image filtering apparatus and method and a video encoding/decoding apparatus and method using the same are disclosed. The image filtering apparatus includes: a boundary identifying unit for identifying a boundary between two transform blocks included in an image; a pixel/strength selecting unit for selecting a filtering strength according to a size of at least one transform block among the two transform blocks; and a filtering unit for filtering at least one pixel included in a region adjacent to the boundary. | 03-07-2013 |
20130058397 | APPARATUS AND METHOD FOR CONSTRUCTING AND INDEXING A REFERENCE IMAGE - An apparatus for configuring and indexing a reference image for estimating motion vector includes: a reference image configuring unit for processing the reference image in a variety of arbitrary different methods and arranging reference frames according to processing methods; and an index assignment unit for assigning reference frame indexes according to the method processed by the reference image configuring unit. | 03-07-2013 |
20130058327 | METHOD FOR PROVIDING EARLY-MEDIA SERVICE BASED ON SESSION INITIATION PROTOCOL - Disclosed is a method of providing an early media service based on a session initiation protocol (SIP). More particularly, the present disclosure relates to a method of providing an early media service based on SIP, wherein an application server and a media server can provide early media of a multimedia form, such as images, moving images and the like, as well as audios, by using an early session or a regular session. | 03-07-2013 |
20130044733 | AUTHENTICATION SYSTEM AND AUTHENTICATION METHOD IN WIRELESS LAN ENVIRONMENT - The authentication system in the wireless LAN environment includes a first wireless LAN access point for providing a wireless LAN service to a terminal device accessing the first wireless LAN access point; the terminal device for transmitting an authentication request to a second wireless LAN access point when the terminal device moves to access the second wireless LAN access point while receiving the wireless LAN service through an access to the first wireless LAN access point; and the second wireless LAN access point for identifying the first wireless LAN access point based on identification information contained in the authentication request transmitted from the terminal device which has moved to access the second wireless LAN access point, acquiring authentication information on the terminal device from the identified first wireless LAN access point, and performing an authentication for the terminal device based on the acquired authentication information. | 02-21-2013 |
20130041981 | MULTI-NETWORK BASED SIMULTANEOUS DATA TRANSMISSION METHOD AND APPARATUSES APPLIED TO THE SAME - A heterogeneous network based simultaneous data transmission service method can effectively control the access of a terminal device to an optimum network interface at a current location to thereby implement an effective and highly reliable heterogeneous network based simultaneous data transmission service. | 02-14-2013 |
20130039415 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE USING VARIABLE-SIZE MACROBLOCKS - A video encoding apparatus includes a candidate block type configuration unit for configuring block type candidates for encoding an image by using variable sized macroblocks; a video encoder for encoding an input image for each block type candidate; and a block type determiner for determining a block type based on encoding costs by the block type candidate, and generating a bitstream including image data encoded by the determined block type and information for the determined block type. Determining the block type to match the image characteristics enables combinations of diverse modes such as a large block and macroblock size, a minimum subblock size, available divisional block type, prediction mode type within a macroblock, and so on to achieve more effective encoding and decoding of high resolution images. | 02-14-2013 |
20130034156 | INTER-PREDICTION METHOD AND VIDEO ENCODING/DECODING METHOD USING THE INTER-PREDICTION METHOD - An inter-prediction method and a video encoding/decoding method using the inter-prediction method are disclosed. The video encoding method using inter-prediction includes: encoding a first picture that serves as a reference for random access; inter-prediction encoding a block included in a second picture, which is displayed before the first picture, by using a plurality of reference pictures; generating reference picture information representing whether a past picture, which is displayed before the second picture, is used as a reference picture for encoding the second picture; and transmitting the encoded first and second pictures and the reference picture information. | 02-07-2013 |
20130034154 | VIDEO ENCODING/DECODING APPARATUS AND METHOD - Video encoding/decoding apparatus includes video encoder and video decoder. Video encoder generates predicted subblocks by predicting subblocks into which macroblock is divided, generates residual subblocks by subtracting predicted subblocks from subblocks, generates quantized transform coefficients by transforming and quantizing residual subblocks by using transform selected according to size of subblock, generates encoded video data by encoding quantized transform coefficients, and selectively calculates and determines encoding cost when determining encoding mode for at least one of motion vector, transform type, prediction mode, and block type for subblocks. Video decoder reconstructs partition type information, motion information, transform type information, and quantized transform coefficients by decoding encoded data, reconstructs residual subblocks by inverse-quantizing and inverse-transforming quantized transform coefficients by using transform identified by transform type information, generates predicted subblocks by predicting subblocks identified according to partition type information by using motion information, and reconstructs subblocks by adding predicted subblocks and residual subblocks. | 02-07-2013 |
20130034153 | VIDEO ENCODING/DECODING APPARATUS AND METHOD - A video encoding/decoding apparatus and method are disclosed. The video encoding/decoding apparatus includes: a video encoder for generating predicted subblocks by predicting subblocks into which macroblock is divided, generating residual subblocks by subtracting predicted subblocks from subblocks, generating quantized transform coefficients by transforming and quantizing residual subblocks by using transform selected according to subblock size, and generating encoded video data by using different context tables according to the macroblock and subblocks when using CABAC to encode the quantized transform coefficients; and a video decoder for reconstructing information of partition type, motion, transform type and quantized transform coefficients by decoding encoded data by using a CABAC and different context tables according to a macroblock and subblocks, reconstructing residual subblocks by inverse-quantizing/inverse-transforming the quantized transform coefficients by using a transform identified by the transform type information, generating predicted subblocks, reconstructing the subblocks, and reconstructing the macroblock based on the subblocks. | 02-07-2013 |
20130034152 | APPARATUS AND METHOD FOR ENCODING/DECODING IMAGES - A video encoding/decoding apparatus includes a video encoder for encoding block mode information indicating whether a block mode of a block to be encoded in a macroblock is a skip mode, partition mode information and skip motion information including index information, encoding at least one of transform type information, CBP information, and delta quantization parameter information of the block according to a combination of the block mode information and the partition mode information, and encoding coefficient information of the block based on the encoded information of the block, and a video decoder for decoding a bitstream to reconstruct block mode information indicating whether a block mode of a block to be decoded is a skip mode, partition mode information indicating whether block is divided into subblocks, and skip motion information including index information, and reconstructing block based on the reconstructed information by using reconstructed skip motion information. | 02-07-2013 |
20130028248 | DATABASE UPDATE METHOD AND APPARATUS FOR LOCATING A pCell - Embodiments of the present invention relate to a database update method and apparatus for locating a pCell. An embodiment of the present invention provides a database update apparatus for locating a pCell, comprising: a database storing grid cells that are sorted by pCell ID; a DB collection unit collecting log data for a WLAN signal from a mobile communication terminal which performs communication using the WLAN signal; an information extraction unit extracting a WLAN parameter from the log data of the WLAN signal; and a DB update unit updating the grid cells by matching and storing the information based on the extracted WLAN parameter in the corresponding grid cell. According to one embodiment of the present invention, the data-based information for AP locations and its application to the determination of a location can enhance the location performance. | 01-31-2013 |
20130022118 | INTER PREDICTION METHOD AND APPARATUS USING ADJACENT PIXELS, AND IMAGE ENCODING/DECODING METHOD AND APPARATUS USING SAME - The present disclosure relates to an inter prediction method and apparatus using adjacent pixels, and a video encoding method and apparatus using the same. The inter prediction method for a predictive encoding includes: determining a current motion vector by estimating a motion of a current block; generating a reference block indicated by the current motion vector; calculating a motion compensation coefficient or an average compensation coefficient by using pixels neighboring the current block and pixels neighboring reference block; generating a changed reference block reflecting the motion compensation coefficient or the average compensation coefficient in the reference block; and determining the changed reference block as a predicted block of the current block. The present disclosure reduces a difference between an actual block and a predicted block by more accurately predicting the block to be encoded, thereby improving the compression efficiency. | 01-24-2013 |
20130022043 | TRANSMITTING DEVICE, RECEIVING DEVICE, AND OPERATION METHOD THEREOF - In a transmitting device, a receiving device, and an operation method thereof according to the present invention, in relation to a simultaneous link transmission of divided data through a plurality of heterogeneous networks for one session, particular partial data to be transmitted or received through a network vulnerable to a security problem among divided partial data is forcedly divided and is then transmitted through two or more networks or a partial data packet included in particular partial data is forcedly re-divided and is then transmitted through two or more networks, so as to effectively conceal the service and thereby prevent other people or another party from recognizing the service through copying or intercepting of data packets. | 01-24-2013 |
20130003825 | DEVICE AND METHOD FOR EXTRACTING CORRELATION PARAMETERS BETWEEN COLOUR PLANES FOR PREDICTION, AND A RECORDING MEDIUM FOR THE SAME - The present disclosure relates to extracting correlation parameters between color planes for prediction by extracting optimum correlation parameters between the color planes using neighboring blocks when a prediction screen is generated through the use of the correlation between the color planes in video encoding. The technology includes neighboring block searching unit responsive to a second block of a reconstructed previous plane corresponding to a first block to be encoded of a current plane, for searching for a third block belonging to neighboring blocks of the second block and having smallest difference in pixel value from the second block; correlation parameter calculator for calculating correlation parameters between the third block and a fourth block reconstructed of the current plane and corresponding to the third block, based on the third block and the fourth block, and predictor for predicting the first block based on the second block and calculated correlation parameters. | 01-03-2013 |
20120329028 | METHOD FOR INTELLIGENT PERSONALIZED LEARNING SERVICE - In a method of offering an intelligent personalized learning service to learning participants, a pointer is assigned to each learning object and associated with each learning object belonging to a learning object database. A learning subject specific to each learning participant is selected from a learning subject database. Information on attempts at the learning objects associated with selected learning subject is recorded on learning history information of each learning participant. Performance completion information is recorded with respect to the learning objects attempted by the learning participant on the learning history information of each learning participant. A proficiency status of the learning participant is diagnosed for the selected learning subject corresponding to the learning participant based on the learning history information of each learning participant. | 12-27-2012 |
20120328015 | IMAGE ENCODING/DECODING METHOD AND DEVICE - The present disclosure relates to a video encoding/decoding apparatus and method, in which skip information indicating whether a block is a skip block is encoded, partition information of the block and skip motion information of the block are encoded or prediction information of the block containing the partition information of the block and intra prediction mode information or motion information are encoded according to the skip information, residual signal information of the block is predictive-encoded based on the prediction information and the transform information, and an encoded signal is reconstructed. The method and the apparatus can improve the video compression efficiency by efficiently encoding the encoding information used for the video encoding and selectively using various encoding methods and decoding methods in encoding the video. | 12-27-2012 |
20120328014 | VIDEO CODING DEVICE, VIDEO CODING METHOD THEREOF, VIDEO DECODING DEVICE, AND VIDEO DECODING METHOD THEREOF - The present disclosure provides a video encoding apparatus and method and a video decoding apparatus and method. The video encoding apparatus, includes: a block mode determiner for determining a block mode of a current block; an NCI block intra encoder responsive if the block mode of the current block determined by the block mode determiner is an intra mode and neighboring blocks of the current block include an NCI block, for encoding the NCI block through an intra prediction of the NCI block; and a current block intra encoder responsive if the block mode of the current block determined by the block mode determiner is the intra mode and the neighboring blocks of the current block include the NCI block, for encoding the current block through an intra prediction of the current block. | 12-27-2012 |
20120322512 | MOBILE PHONE FOR CONTROLLING DIVERSITY - A mobile phone to transmit and receive a radio frequency signal through a first antenna and a second antenna in a radio communication system includes a first radio frequency signal receiving unit to convert the radio frequency signal received through the first antenna into a baseband signal to be transmitted to a controller, a second radio frequency signal receiving unit to convert the radio frequency signal received through the second antenna into a baseband signal to be transmitted to the controller, and a radio frequency signal transmitting unit to convert a baseband signal transmitted from the controller into a radio frequency signal, to distribute the radio frequency signal, and to selectively output the distributed radio frequency signal to the first antenna and the second antenna. | 12-20-2012 |
20120320975 | VIDEO ENCODING DEVICE AND ENCODING METHOD THEREOF, VIDEO DECODING DEVICE AND DECODING METHOD THEREOF, AND DIRECTIONAL INTRA-PREDICTION METHOD TO BE USED THERETO - The present disclosure provides a video encoding apparatus and encoding method thereof, video decoding apparatus and decoding method thereof, and directional intra-prediction method to be used therefor. The video encoding apparatus includes a main mode search unit for searching for main mode for a current block from among directional intra-prediction modes; a sub mode search unit for searching for sub modes formed by inclining indicated orientation of found main mode by main mode search unit by a predetermined offset in both clockwise and counterclockwise directions; a predicted block generator for generating predicted block of the current block from neighboring blocks of the current block based on found main mode by the main mode search unit and found sub modes by the sub mode search unit; a differentiator for calculating differential between the current block and the predicted block; and an encoder for encoding calculated differential by the differentiator. | 12-20-2012 |
20120320965 | APPARATUS AND METHOD FOR ENCODING/DECODING A MULTI-PLANE IMAGE, AND RECORDING MEDIUM FOR SAME - The present disclosure relates to a multi-plane image encoding technology for adaptively determining the encoding sequence of planes in the image based on the characteristics of the image to be coded, and provides a multi-plane image encoding apparatus including a plane encoding sequence determiner for adaptively determining a sequence of multiple color planes inputted in a predetermined unit based on the encoding cost; and an encoder for encoding the multiple color planes inputted by the predetermined unit in the determined sequence. Encoding the multi-plane image with the sequence of the planes in the input image determined by the image characteristics enables an increased efficiency of encoding over conventional fixed plane sequence encoding, providing a particularly higher encoding efficiency when performing predictions between the planes. | 12-20-2012 |
20120314771 | METHOD AND APPARATUS FOR INTERPOLATING REFERENCE PICTURE AND METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE USING SAME - The present disclosure relates to a method and apparatus for interpolating a reference picture and a method and apparatus for encoding/decoding a video using the same. The apparatus for interpolating the reference picture selects a plurality of filters for interpolating the reference picture and generates a reference picture having a target precision through a multi-stage filtering of the reference picture by using a plurality of filters. The compression efficiency of the video may be improved by interpolating a reference picture through the determination of a filter of a filter coefficient for interpolating the reference picture according to characteristics of the video and interpolating the reference picture through a multi-stage filtering or adaptively changing resolutions of motion vectors in the unit of predetermined areas. | 12-13-2012 |
20120311563 | SYSTEM AND METHOD FOR INSTALLING SMART CARD APPLET - Disclosed are a system and a method for installing a smart card applet. A response message for an OTA message received from an external remote server is transmitted to form a communication channel based on HTTP (hyper text transfer protocol) between a smart card and the remote server. The applet is installed based on applet installation information received through the communication channel. A large scale applet is installed in a card within a short period of time. | 12-06-2012 |
20120311109 | SYSTEM AND METHOD FOR INSTALLING SMART CARD APPLET - Disclosed are a system and a method for installing a smart card applet. A response message for an OTA message received from an external remote server is transmitted to form a communication channel based on HTTP (hyper text transfer protocol) between a smart card and the remote server. The applet is installed based on applet installation information received through the communication channel. A large scale applet is installed in a card within a short period of time. | 12-06-2012 |
20120308148 | ENCODING/DECODING METHOD AND APPARATUS USING A TREE STRUCTURE - The present disclosure provides an encoding/decoding method using a tree structure. The encoding method for encoding image information includes: grouping predetermined areas having the image information into a plurality of groups, and generating a node value of each layer up to an uppermost layer by determining a minimum value or a maximum value of information to be encoded within grouped areas as information on the grouped areas; and encoding a difference value between the node value of each layer and a node value of an upper layer or a difference value between the node value of each layer and a value determined based on a preset criterion. Accordingly, the encoding efficiency and in turn the video compression efficiency are improved by using the tree structure in the encoding of various pieces of image information and the decoding of the resultant encoded data. | 12-06-2012 |
20120307906 | ADAPTIVE SECONDARY PREDICTION-BASED IMAGE ENCODING/DECODING METHOD, DEVICE AND RECORDING MEDIUM - The present disclosure provides a video encoding/decoding method including: selectively frequency transforming a first residual block generated by subtracting a predicted block from a current block, generating a first quantized block for the first residual block or the frequency transformed first residual block, generating a second quantized block, if the first quantized block is a quantized first residual block from quantizing the first residual block, through selectively performing a secondary prediction on the quantized first residual block by using a secondary predicted motion vector set, encoding information on whether the frequency transforming is performed and selectively encoding information on the secondary prediction, encoding the first quantized block or the second quantized block into a bitstream, and decoding the same. | 12-06-2012 |
20120307905 | METHOD AND APPARATUS FOR ENCODING/DECODING A MOTION VECTOR BY SELECTING A SET OF PREDICTED CANDIDATE MOTION VECTORS, AND METHOD AND APPARATUS FOR IMAGE ENCODING/DECODING USING THE SAME - A method of encoding a motion vector includes: selecting one of a plurality of predicted candidate motion vector sets by using motion information of neighboring blocks of a current block; selecting one of predicted candidate motion vectors within a selected predicted candidate motion vector set, as a predicted motion vector; encoding a differential motion vector representing a difference between a current motion vector or motion vector of the current block and a selected predicted motion vector; and encoding a predicted motion vector index indicating the selected predicted motion vector. As a motion vector is encoded after selecting an efficient predicted candidate motion vector set, the size of a differential vector to be encoded can be reduced without necessarily encoding additional information to indicate which set of predicted candidate motion vectors has been selected, resulting in improved compression efficiency of motion vectors and in turn the improved video compression efficiency. | 12-06-2012 |
20120307899 | APPARATUS AND METHOD FOR ENCODING/DECODING MULTI-PLANE IMAGES USING BI-PREDICTION AND RECORDING MEDIUM USING SAME - The present disclosure relates to technology for generating an efficient predicted image by using a correlation between color planes in encoding of a multi-plane video. An apparatus for encoding a multi-plane video including two or more color planes by using a bi-prediction includes: an intra-predictor for generating a first predicted block by performing an intra-prediction on a current block of a current plane; an inter-plane predictor for generating a second predicted block by performing an inter-plane prediction; a dual-plane predictor for generating a third predicted block based on the first predicted block and the second predicted block; an optimum mode determiner for selecting one optimum predicted block having a highest encoding efficiency from the first to third predicted blocks; and an encoder or a decoder for encoding or decoding the current block based on a selected optimum predicted block. | 12-06-2012 |
20120307895 | IMAGE-ENCODING APPARATUS AND METHOD, TRANSFORM-ENCODING APPARATUS AND METHOD, APPARATUS AND METHOD FOR GENERATING A TRANSFORM BASE, AND IMAGE-DECODING APPARATUS AND METHOD USED IN SAME - A video encoding apparatus includes an intra prediction error collector; a transform base generator; an intra predictor; and a transform encoder, the intra prediction error collector collecting prediction errors of blocks having an equal intra prediction mode from macroblocks in a regular unit, which are encoded prior to a current macroblock, the transform base generator generating transform bases for respective intra prediction modes based on the prediction errors collected by the intra prediction error collector. Accordingly, the intra prediction encoding performance can be significantly improved with adding no addition information by adaptively generating a transform base according to an image characteristic change and transform-encoding an intra prediction error. As a result, the compression efficiency of a video compression apparatus or the picture quality of a reconstructed image can be greatly improved. | 12-06-2012 |
20120300848 | APPARATUS AND METHOD FOR GENERATING AN INTER-PREDICTION FRAME, AND APPARATUS AND METHOD FOR INTERPOLATING A REFERENCE FRAME USED THEREIN - The present disclosure provides an apparatus and a method for generating an inter-prediction frame, and an apparatus and a method for interpolating a reference frame used therein. The apparatus for interpolating the reference frame includes a directivity determiner for determining directivity of a quarter pixel located at the intersection of a left diagonal line and a right diagonal line of a half-pixel unit based on surrounding pixels of the quarter pixel; and an interpolation processor for interpolating a pixel value for the quarter pixel by differently applying a linear interpolation method depending on the directivity determined by the directivity determiner. | 11-29-2012 |
20120275522 | METHOD AND APPARATUS FOR MOTION VECTOR ENCODING/DECODING USING SPATIAL DIVISION, AND METHOD AND APPARATUS FOR IMAGE ENCODING/DECODING USING SAME - The present disclosure relates to a method and apparatus for motion vector encoding/decoding using spatial division, and to a method and apparatus for image encoding/decoding using same, wherein the motion vector encoding method includes: aggregating predicted motion vector candidates of a current block into a plurality of groups; selecting representative predicted motion vectors for respective groups by selecting one of aggregated predicted motion vector candidates within the respective groups as representative predicted motion vector; selecting single representative predicted motion vector from the representative predicted motion vectors for the respective groups as a predicted motion vector; and encoding a differential vector representing difference between a current motion vector of the current block and a selected predicted motion vector. The disclosure suppresses an increase in bit rate caused by encoding side information for indicating which predictor motion vector is selected while is reducing the size of the differential vector to be encoded. | 11-01-2012 |
20120269371 | SYNCHRONIZATION SYSTEM AND METHOD FOR TRANSMISSION AND RECEPTION IN AUDIBLE FREQUENCY RANGE-BASED SOUND COMMUNICATION, AND APPARATUS APPLIED THERETO - Provided is a synchronization system and method for acoustic communication in audible frequency range, and an apparatus applied thereto. The synchronization system for acoustic communication in audible frequency range is configured to prevent deterioration of a synchronization performance and to reduce an amount of calculation by calculating a correlation based on a few samples as opposed to calculating a correlation for each sample when a receiver of the acoustic communication performs synchronization while the acoustic communication is performed in the audible frequency range through modification of an audio signal or adding of a predetermined signal to an audio signal. | 10-25-2012 |
20120269274 | METHOD AND APPARATUS FOR ENCODING/DECODING VIDEO USING SPLIT LAYER - The present invention relates to a method and an apparatus for encoding/decoding a video using a split layer. The video encoding/decoding method generates an encoded image data by encoding a current block partitioned into a plurality of subblocks, generates an encoded partition information data by encoding partition information of the current block, generates a bitstream including the encoded image data and the encoded partition information data, and then reconstructs the video image from the generated bitstream. According to the present disclosure, when encoding a high resolution video with variable sized blocks, various block shapes may be used for the encoding, and efficient encoding and decoding of the block partition information can improve the compression efficiency. | 10-25-2012 |
20120269268 | MOTION VECTOR ENCODING/DECODING METHOD AND DEVICE AND IMAGE ENCODING/DECODING METHOD AND DEVICE USING SAME - The present disclosure relates to a method and apparatus for encoding/decoding a motion vector and a method and apparatus for encoding/decoding video using same. The motion vector encoding method includes selecting a predicted motion vector candidate set including one or more predicted motion vector candidates for a block; determining one or more search ranges for predicted motion vector candidate set; selecting one predicted motion vector candidate among one or more predicted motion vector candidates as predicted motion vector for each search point with respect to each search point within search range by first determination criterion prearranged with video decoding apparatus; selecting one predicted motion vector among the predicted motion vectors for each search point by a second determination criterion not prearranged with the video decoding apparatus, and determining predicted motion vector, differential motion vector, and current motion vector; and generating and encoding the differential motion vector as motion information. | 10-25-2012 |
20120269038 | SYSTEM AND METHOD FOR REDUCING DATA RECEPTION ERROR IN ACOUSTIC COMMUNICATION IN AUDIBLE FREQUENCY RANGE, AND APPARATUS APPLIED THERETO - Provided is a data reception error reduction system and method in acoustic communication in audible frequency range, and an apparatus applied thereto. The data reception error reduction system in the acoustic communication in audible frequency range may be configured to reduce a data reception error in a receiver by taking into consideration that a sound signal is noisy and is significantly affected by a change in the ambient environment when the acoustic communication is performed in the audio frequency band through modification of an audio signal or adding of a predetermined signal to an audio signal. Accordingly, the data reception error may be reduced in the receiver even in an environment where a sound signal is noisy and is significantly affected by a change in the ambient environment, and reliability of data transmission may increase. | 10-25-2012 |
20120259749 | DEMAND RESPONSE SYSTEM AND METHOD USING A SMART PORTAL - The demand response system comprises an automatic meter reading (AMR) unit to generate metering information. The demand response system comprises a multiple utility complex unit (MUC) which provides DR information based on the metering information and manages utility supply schedule in combination. The demand response system comprises an eco index (EI) calculation unit which calculates an eco index based on the metering information. The demand response system comprises a demand response (DR) unit which obtains the CBL information based on the metering information and computes a the DR bill by using the CBL data, the DR information and EI obtained, and outputs the DR bill. The demand response system comprises a smart portal (SP) unit which provides users with the calculated DR bill. According to the disclosure, the demand response system can provide environmental and social information, in addition to economic information. | 10-11-2012 |
20120224777 | METHOD AND APPARATUS FOR ENCODING AN INTRA-PREDICTION MODE USING VARIABLE LENGTH CODES, AND RECORDING MEDIUM FOR SAME - The disclosure relates to a method, apparatus, and recording medium for encoding an intra-prediction mode of an image using variable length codes, including: determining an intra prediction mode of a current block; determining an intra prediction mode having smallest mode number among intra prediction modes of encoded adjacent blocks as Most Probable Mode; generating and allocating variable length codes in ascending order from shorter code with higher similarity for directivity with MPM for all intra-prediction modes; and encoding intra prediction mode of current block based on allocated variable length codes, and thereby generates efficient variable length codes in consideration of high correlation in the intra-prediction modes of current block and peripheral blocks even if intra-prediction mode of current block does not match MPM derived with reference to peripheral blocks, and efficiently compressing information on intra-prediction mode of current block using variable length codes, thereby improving intra video encoding performance. | 09-06-2012 |
20120224635 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGES USING ADAPTIVE MOTION VECTOR RESOLUTION - The present disclosure relates to a method and apparatus for improving the encoding efficiency by adaptively changing the resolution of the motion vector in the inter prediction encoding and inter prediction decoding of a video. The apparatus includes: a predicted motion vector calculator for calculating a predicted motion vector of a current block to be encoded using motion vectors of one or more surrounding blocks; and a skip mode encoder for encoding a result of performing a prediction of the current block and information indicating that the current block is a skip block when the predicted motion vector satisfies a skip condition, wherein at least one motion vector among the motion vectors of the surrounding blocks and the motion vector of the current block has a resolution different from resolutions of the other motion vectors. | 09-06-2012 |
20120223775 | DOHERTY AMPLIFIER - The embodiment relates to a Doherty amplifier, wherein in order to perform impedance matching. The embodiment comprises an impedance converter and a connector. The impedance converter includes a plurality of lines having different lengths and disposes between an output end of a carrier amplifier and an output end of a peaking amplifier. The connector connects a line selected from the plurality of lines having different lengths of the impedance converter to the output end of the carrier amplifier and to the output end of the peaking amplifier. | 09-06-2012 |
20120220344 | METHOD AND APPARATUS FOR PROVIDING A PLURALITY OF SCREENS IN IDLE STATE OF MOBILE TERMINAL - The present disclosure is a method for providing a plurality of screens in an idle state of a mobile terminal, comprising; allocating at least one application program to each of the screens, based on a user selection; displaying a first screen among the plurality of screens in the idle state; receiving a screen switch request from a user; and turning the screens one by one based on the screen switch request so as to display the at least one application program allocated to each of the screens. | 08-30-2012 |
20120220229 | Near Field Communication Apparatus and Method for Supporting Security Modules - The present disclosure provides a terminal comprising: a socket configured to receive a security module; an NFC (Near Field Communication) unit configured to communicate with an external reader or another terminal; and a protocol identifying unit configured to supply a voltage to the security module and to identify whether the security module supports a first protocol by transmitting a signal for using the first protocol through a first contact of the security module and receiving from the security module a first information associated with a protocol supported by the security module, wherein the terminal additionally receives a second information associated with the protocol supported by the security module through a second contact of the security module, and wherein the NFC unit receives a information from the security module through the first contact based on the first protocol identified by the protocol identifying unit, and transmits the received information to the external reader or another terminal. | 08-30-2012 |
20120219063 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGES USING ADAPTIVE MOTION VECTOR RESOLUTION - The present disclosure relates to a method and apparatus for improving the encoding efficiency by adaptively changing the resolution of the motion vector in the inter prediction encoding and inter prediction decoding of a video. The apparatus includes: a block identification unit for identifying a colocated block included in a reference picture as a block located at a position equal to a position of a current block; a moving block determiner for determining if the current block is a moving block, based on a motion vector of the colocated block; a motion vector determiner for determining a motion vector of the current block according to a result of the determining of if the current block is a moving block; and a resolution converter for converting a resolution of the motion vector of the colocated block. | 08-30-2012 |
20120219056 | METHOD, APPARATUS, AND RECORDING MEDIUM FOR ENCODING MOTION PICTURES THROUGH SECOND PREDICTION BASED ON REFERENCE IMAGES - The present disclosure relates to a method, apparatus, and recording medium for encoding videos (adaptive prediction errors) through a reference image-based second prediction to reduce predictive errors and may include in an aspect: generating first prediction error signals based on input signals and prediction signals; generating second prediction error signals based on a first prediction error signal of a current block and a first prediction error signal of a reference block; performing an adaptive DCT transform followed by a quantization on the first prediction error signals or the second prediction error signals into quantized signals; and encoding the quantized signals. | 08-30-2012 |
20120207220 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGES USING ADAPTIVE MOTION VECTOR RESOLUTION - The present disclosure relates to a method and apparatus for improving the encoding efficiency by adaptively changing the resolution of the motion vector in the inter prediction encoding and inter prediction decoding of a video. The video encoding/decoding apparatus includes: a video encoder for determining a motion vector resolution of each area or motion vector of a video and performing an inter prediction encoding of the video by using a motion vector according to the motion vector resolution determined for each area or motion vector; and a video decoder for reconstructing a resolution by extracting resolution information from a bitstream, and then performing an inter prediction decoding by using a motion vector according to the motion vector resolution of each reconstructed area or motion vector. | 08-16-2012 |
20120207211 | IMAGE ENCODING AND DECODING APPARATUS AND METHOD - The present disclosure provides a video encoding/decoding apparatus and method. According to one embodiment, the video encoding and decoding apparatus includes: an image encoder for reducing horizontal and vertical sizes of a variable macro block into a set size or by a set ratio with the variable macro block reset in a smaller size than the current size, if the variable macro block for the current encoding is not inside an input image, and predictive encoding based on the reset variable macro block; and an image decoder for decoding by reducing the size of the variable macro block for the current decoding into the set size or by set ratio with the variable macro block reset in a smaller size than the current size, if the variable macro block of the current decoding target is not inside an input image. | 08-16-2012 |
20120201300 | ENCODING/DECODING METHOD AND DEVICE FOR HIGH-RESOLUTION MOVING IMAGES - Disclosed is a high-resolution video encoding/decoding method and apparatus. The video encoding method includes: predicting a current block to generate a predicted block, subtracting the predicted block from the current block to generate a residual block, determining a transform and quantization type according to the block type of the current block; transforming and quantizing the residual block according to the determined transform and quantization type; and encoding the transformed and quantized residual block. According to the video encoding/decoding method and apparatus, not only the encoding efficiency can be improved because it enables an encoding using a high correlation between temporally/spatially adjacent pixels appearing in a video, but the compression efficiency can also be improved by reducing block distortion. | 08-09-2012 |
20120201296 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGES CONSIDERING LOW FREQUENCY COMPONENTS - The present disclosure relates to a video encoding/decoding method and apparatus that account for low frequency components. The method includes generating a reconstructed block by performing a predictive encoding on a current block and generating encoded image data, and generating encoded low frequency data by encoding a low frequency component of an error block generated through subtraction of the reconstructed block from the current block, thereby improving the compression efficiency while reducing blocking effects due to transform and quantization operations by encoding images accounting for low frequency components. | 08-09-2012 |
20120201295 | METHOD AND APPARATUS FOR INTRA-PREDICTION ENCODING/DECODING - The present disclosure provides a method and apparatus for intra prediction encoding/decoding. The method includes: selecting an intra prediction mode of each block to be encoded; encoding a residual block generated through an intra prediction of the block according to the selected intra prediction mode to generate a coefficient bit; encoding a mode identifier for indicating the intra prediction mode according to the predetermined mode determination method to generate a mode bit; generating a bitstream including a mode bit field including a mode bit for one or more blocks and a coefficient bit field including a coefficient bit for the block; and including a mode bit field pointer for identifying the mode bit field in the bitstream. The present disclosure simplifies the process of selecting a prediction mode in a video compression to improve a compression speed and decreases a size of compressed data to improve the compression efficiency. | 08-09-2012 |
20120171538 | MOBILE TERMINAL WITH USER IDENTIFICATION CARD INCLUDING PERSONAL FINANCE- RELATED INFORMATION AND METHOD OF USING A VALUE-ADDED MOBILE SERVICE THROUGH SAID MOBILE TERMINAL - The present invention enables a user to receive a financial service anywhere through a mobile terminal equipped with a UIM (User Identification Module) electronic card. In the present invention, a user enters his or her password to a mobile terminal with a UIM card including subscriber telephone number, finance, authorization, and personal information, then, if the entered password is correct, authorization is processed with a remote authorizing server based on the authorization information. After authorization, user's requesting service, e.g., payment service, transaction particulars inquiry service, prepaid card recharging service is conducted through a mobile network. | 07-05-2012 |
20120171521 | MOBILE TERMINAL WITH USER IDENTIFICATION CARD INCLUDING PERSONAL FINANCE- RELATED INFORMATION AND METHOD OF USING A VALUE-ADDED MOBILE SERVICE THROUGH SAID MOBILE TERMINAL - The present invention enables a user to receive a financial service anywhere through a mobile terminal equipped with a UIM (User Identification Module) electronic card. In the present invention, a user enters his or her password to a mobile terminal with a UIM card including subscriber telephone number, finance, authorization, and personal information, then, if the entered password is correct, authorization is processed with a remote authorizing server based on the authorization information. After authorization, user's requesting service, e.g., payment service, transaction particulars inquiry service, prepaid card recharging service is conducted through a mobile network. | 07-05-2012 |
20120170579 | MULTICAST SYSTEM AND MULTICAST METHOD USING SHORTENED ADDRESS AND APPARATUS APPLIED TO THE SAME - Disclosed is a multicast system and a multicast method using a shortened address and an apparatus applied to the same. The multicast system using the shortened address according to the present disclosure has a address configuration for supporting a multicast in an IEEE 802.15.4 MAC (Medium Access Control) layer. Accordingly, when a device processes a multicast through an address configuration of the MAC layer, the device receives the multicast through a simple scheduling such as receiving a beacon signal of a coordinator device only when there is a broadcast of a group including the device. As a result, the device can efficiently perform the multicast in a power managing process or a power processing process. | 07-05-2012 |
20120168494 | SMART CARD-BASED BROWSING SYSTEM AND SMART CARD-BASED BROWSING METHOD AND SMART CARD FOR THE SAME - Disclosed are a smart card-based browsing system, a smart card-based browsing method, and smart card for the same. A browser is installed in the smart card to form a direct connection path with an SCWS installed in the smart card. The number of sockets for HTTP request/response required to be as many as the number of contents for services between the smart card and the user terminal is reduced, so that the services can be smoothly provided through a rapid and effective interface. A web service can be provided to various multimedia appliances compatible with the smart card regardless of the existence of the browser on the user terminal and the type and version of the browser. | 07-05-2012 |
20120163363 | SYSTEM AND METHOD FOR MINIMIZING SIGNAL INTERFERENCE BETWEEN BROADCASTING SIGNALS AND COMMUNICATION SIGNALS WITHIN LOCAL AREA AND APPARATUS APPLIED TO THE SAME - Disclosed is a system and a method for minimizing signal interference for a broadcasting and communication convergence section within a local area, and an apparatus applied to the same. The system has a construction of mounting a plurality of multi RF (Radio Frequency) channels within a local area wireless communication apparatus located in a local area and minimizing signal interference between mutually adjacent RF channels within the local area wireless communication apparatus in a standard for providing a broadcasting and communication convergence service. Accordingly, it is possible to remove the mutual channel effects affecting a communication signal without signal interference for adjacent channels due to a broadcasting signal and it is not necessary to enhance a filtering characteristic for the adjacent channels of a chipset, which corresponds to a broadcasting and communication convergence standard structure in a local area, so that there is an advantage of reducing network investment costs. | 06-28-2012 |
20120163362 | PACKET TRANSMISSION SYSTEM BASED ON WIRELESS PERSONAL AREA NETWORK AND METHOD THEREOF - Disclosed is a network interworking system and method. That is, a header size is minimized through a fragment of an IPv4 packet based IP packet and a header compression and it is implemented such that the IPv4 is loaded in an IEEE 802.15.4 MAC/PHY packet having a small payload, so that it is possible to efficiently transmit an IPv4 packet by using an IEEE 802.15.4 based WPAN. Further, various applications can be executed using the IPv4 while using an IEEE 802.15.4 technology, which is a low power communication technology, in a mobile device. | 06-28-2012 |
20120162008 | ANTENNA SYSTEM HAVING ADAPTIVE POLARIZATION CONTROL - An antenna system includes: an orthogonal multi-polarization antenna configured to output independent double orthogonal polarizations through two independent input/output terminals; an antenna main control unit configured to perform a polarization control algorithm, collect and analyze information for polarization control, and provide polarization control information; and a polarization control unit configured to perform independent amplitude and phase control with regard to a pair of independent channels connected to the orthogonal multi-polarization antenna, based on the polarization control information received from the antenna main control unit, so that various polarizations are formed. | 06-28-2012 |
20120144443 | SYSTEM AND METHOD FOR EXECUTING SOURCE BUFFERING FOR MULTIPLE INDEPENDENT GROUP TRANSMISSION OF REAL-TIME ENCODED SCALABE VIDEO CONTENTS - A system and method for performing source buffering to transmit a real-time encoded scalable video to multiple transmission groups are provided. A streaming system for providing a scalable video bitstream for each multicast group may include an encoder source buffer to receive a scalable video bitstream and to store the received scalable video bitstream, and a plurality of subgroup transmitters, each to receive data of different layers in the stored scalable video bitstream from the encoder source buffer, to packetize the received data, and to transmit the packetized data to a terminal. | 06-07-2012 |
20120130797 | DISCOUNT PAYMENT METHOD AND SYSTEM USING A TEMPORARY CARD NUMBER - Disclosed is a method and system for making payment with discounted prices by using temporary card numbers. The method comprises the steps of: (a) at least one discount means being selected by a user of a mobile terminal, and the mobile terminal transmitting temporary card number issue information including the selected discount means to a temporary card number issue device, wherein the mobile terminal in advance stores a plurality of discount means that can substantially discount a transacted price; (b) the temporary card number issue device selecting and storing temporary card numbers corresponding to the temporary card number issue information and transmitting the selected temporary card numbers to the mobile terminal; (c) the mobile terminal transmitting payment information including the temporary card numbers and payment means information including information on a payment means for paying the transacted price to a credit authorization terminal (CAT) if a payment request is received from the user only for a predetermined time period from when the temporary card numbers are received, and extinguishing the temporary card numbers after the predetermined time period from when the temporary card numbers are received; and (d) the CAT receiving the payment information from the mobile terminal, transmitting a request for a transaction authorization to the payment company server by using the payment information, and receiving the transaction authorization from the payment company server. | 05-24-2012 |
20120106636 | IMAGE ENCODING/DECODING METHOD AND APPARATUS - The present disclosure relates to a video encoding/decoding method and provides a video encoding apparatus including: an intra-prediction mode determiner for determining an intra prediction mode of current block entitled an encoder prediction mode by using candidate intra-predictable mode set including intra-prediction mode candidates being selected from a whole and predictable by video decoding apparatus; an encoder for encoding residual block from subtracting predicted block from predicting the current block by the encoder prediction mode from current block; a mode information generator for generating mode information depending on whether the video decoding apparatus can predict the encoder prediction mode; and an encoded data generator for generating encoded data including an encoded residual block and the mode information. The present disclosure selectively encodes mode information on the intra-prediction mode to reduce the bit rate of encoded data from encoding video and improve video compression efficiency and quality of compressed video. | 05-03-2012 |
20120106633 | APPARATUS AND METHOD FOR IMAGE ENCODING/DECODING CONSIDERING IMPULSE SIGNAL - An apparatus and method for video encoding/decoding considering impulse signal are disclosed. The method for video encoding includes generating a predicted block from predicting a current block and subtracting the predicted block from the current block to generate an M×N residual block, and encoding an A×B residual block containing residual signals of an impulsive component in the M×N residual block to generate a bitstream. The apparatus and the method of the present disclosure improve coding efficiency by efficiently encoding or decoding the residual signals of the impulse component in encoding or decoding videos. | 05-03-2012 |
20120106631 | IMAGE ENCODING/DECODING APPARATUS AND METHOD USING MULTI-DIMENSIONAL INTEGER TRANSFORM - The present disclosure relates to a video encoding/decoding apparatus and method using a multi-dimensional integer transform. The video encoding method of the present disclosure includes: decomposing subblocks in units of a rectangular block and successively encoding rectangular block units to output a rectangularly encoded bitstream of each subblock; encoding the subblocks in units of a square block to output a squarely encoded bitstream of each subblock; calculating an encoding cost involving at least one rectangularly encoded bitstream; calculating an encoding cost not involving the rectangularly encoded bitstream; and on the basis of the calculations, using one or more of the squarely encoded bitstream and the rectangularly encoded bitstream to generate and output the bitstream of the macroblock. According to the disclosure, since the coding scheme for encoding or decoding a video with a higher efficiency is selectively determined, the prediction accuracy can increase and thereby improve the video encoding efficiency. | 05-03-2012 |
20120069758 | MULTI-MODE MULTI-BAND MOBILE COMMUNICATION TERMINAL AND MODE SWITCHING METHOD THEREOF - Disclosed is a multi-mode multi-band mobile communication terminal and a mode switching method thereof wherein a mode switching can be performed between an asynchronous network and a synchronous network by minimizing interruption in communication. According to the switching method of a multi-mode multi-band mobile communication terminal, the power of a signal received from an asynchronous network or a synchronous network is measured and the measured power of the received signal drives a modem portion, thereby switching the mode of the mobile communication terminal. | 03-22-2012 |
20120039388 | METHOD AND APPARATUS FOR SELECTING A PREDICTION MODE, AND IMAGE ENCODING/DECODING METHOD AND APPARATUS USING SAME - The present disclosure concerns a method and apparatus for selecting an intra prediction mode and a video encoding/decoding method and apparatus using same. The encoding apparatus selects an intra prediction mode of current block to encode from input video by a variation of the value of pixel adjacent to the current block; encodes a residual block from intra-predicting the current block in the selected intra prediction mode of current block to generate coded coefficient bit having a bitstream generator for generating and outputting a bitstream including the coded coefficient bit and a prediction mode bit representing the selected intra prediction mode of current block by a macroblock or subblock unit with the prediction mode bit included selectively in the bitstream depending on the variation. Accordingly, selection process of a prediction mode for image compression is simplified, a faster compression is obtained and compressed data is deflated to improve compression efficiency. | 02-16-2012 |
20120036067 | ELECTRONIC MONEY CHARGING SERVICE SYSTEM, ELECTRONIC MONEY CHARGING SERVER AND CHARGING METHOD THEREOF - E-money recharge service system, e-money recharge server, and recharge method are disclosed. The e-money recharge service system includes: recipient terminal for receiving and storing e-money; payer terminal for performing settlement approval procedure for payment of e-money loaded into recipient terminal; and money recharge server for receiving input of money information including information on the whole or part of identification of recipient terminal, identification of payer terminal, recharge amount, and methods of payment from subscriber to money recharge service, for the subscriber acting money payer recharging the recipient terminal with e-money corresponding to recharge amount and making payment for settling recharge amount of money through the methods of payment, and for the subscriber acting money recipient transmitting message of inquiry to payer terminal of settlement approval of recharge amount and recharging recipient terminal with e-money corresponding to recharge amount if settlement approval is issued by payer terminal. | 02-09-2012 |
20120034907 | METHOD FOR TRANSMITTING DIGITAL DATA AND SYSTEM THEREOF AND MOBILE TERMINAL FOR THE SAME IN CALL WAITING - The present invention relates to a method and system for transmitting digital data while waiting for call connection and a mobile communication terminal for the same. If an originating mobile communication terminal attempts call connection, the mobile communication system searches for service subscription information of a terminating mobile communication terminal and confirms whether or not the terminating mobile communication terminal is a subscriber of a data transmission service. If the terminating mobile communication terminal is a subscriber of the data transmission service, the mobile communication system requests and receives call connection waiting information containing a plurality of digital data and matching to the terminating mobile communication terminal from a connection information providing server, and encodes and transmits the call connection waiting information to the originating mobile communication terminal. Therefore, digital data can be transmitted to the mobile communication terminal while connecting a call without separately using an additional protocol. | 02-09-2012 |
20120026999 | LOCAL AREA BROADCASTING SERVICE SYSTEM AND METHOD, AND WIRELESS TRANSMISSION DEVICE APPLIED THEREIN - Provided is a system and method for a local area broadcast service, and a wireless transmission apparatus applied to them. In the system, contents to be broadcasted in a predetermined local area are transmitted from a broadcast server to a wireless transmission apparatus through a wired network based on an Internet Protocol and the contents are then broadcasted from the wireless transmission apparatus to one or more user terminal devices. Therefore, according to the present invention, a server of a wired network can easily provide particular contents for each particular local area to one or more user terminal devices in the local area. Moreover, it is possible to reduce the load of the server, when the server provides multiple types of contents or provides contents to a plurality of user terminal devices. | 02-02-2012 |
20120023161 | SYSTEM AND METHOD FOR PROVIDING MULTIMEDIA SERVICE IN A COMMUNICATION SYSTEM - Disclosed herein are a system and a method for providing multimedia services capable of providing various types of multimedia contents and information sensed at multi-points to users at a high rate and in real time at the time of providing the multimedia contents and sense scene representation and sensory effects for multimedia contents corresponding to multimedia services through the multi-points according to service requests of the multimedia services that users want to receive, encode and transmit the sensed information for scene representation and sensory effects with binary representation according to the sensing, transmit device command data for the sensed scene representation and sensory effects, drive and control user devices according the device command data to provide the scene representation and the sensory effects for the multimedia contents to the users. | 01-26-2012 |
20110317930 | METHOD AND APPARATUS FOR SELECTIVELY ENCODING/DECODING SYNTAX ELEMENTS, AND APPARATUS AND METHOD FOR IMAGE ENCODING/DECODING USING SAME - An apparatus and a method for motion vector encoding/decoding, and to an apparatus and a method for image encoding/decoding using same are provided. The apparatus includes a selector of optimal predicted motion vector PMV from candidate motion vector set of current block; a determiner of motion vector prediction mode of current block with selected motion vector prediction mode from multiple motion vector prediction modes by decision criterion prearranged with motion vector decoding apparatus; and an encoder for determining, by determined motion vector prediction mode, optimal PMV or default predicted motion vector into PMV for current motion vector, encoding differential vector between the current block and PMV, and selectively encoding/outputting determined motion vector prediction mode as encoded motion vector prediction mode by the determined motion vector prediction mode. Bit quantity in encoding a motion vector is reduced improving encoding efficiency and preventing decoder crash even at encoding error, improving decoder. | 12-29-2011 |
20110310782 | METHOD AND APPARATUS FOR DISCONTINUOUS TRANSMISSION-RECEPTION OPERATION FOR REDUCING POWER CONSUMPTION IN CELLULAR SYSTEM - Provided is a method and apparatus for discontinuously transmitting/receiving packets for low-power consumption of a terminal in a cellular system for packet transmission. The present research provides a method and apparatus that can perform a low-power consuming operation when a terminal is in active state in a cellular system. The method for discontinuously transmitting/receiving packet data to reduce power consumption of a terminal in a cellular system, including a) establishing discontinuous reception/transmission (DRX/DTX) parameters including discontinuous DRX/DTX cycle information for terminals operating in a transmission suspension mode, which is a sub-state of an active state; and b) performing DRX/DTX based on the DRX/DTX parameters in the terminals operating in the transmission suspension mode. | 12-22-2011 |
20110307835 | METHOD FOR DISPLAYING THUMBNAIL GROUP ON IDLE SCREEN AND MOBILE COMMUNICATION TERMINAL | 12-15-2011 |
20110305218 | METHOD FOR REQUESTING AND REPORTING CHANNEL QUALITY INFORMATION IN WIRELESS PORTABLE INTERNET SYSTEM - A method for requesting and reporting channel quality information (CQI) in a wireless portable Internet system is disclosed. Timing of a channel quality information request by a base station is determined, existence of an automatic repeat request acknowledgment (ARQ_ACK) message of downlink data is determined on requesting the channel quality information from the subscriber station, the automatic repeat request acknowledgment message and the radio resource for the channel quality report to the subscriber station is allocated, the automatic repeat request acknowledgment message and the channel quality report information is received, and a modulating and coding level of downlink data is determined by extracting the channel quality report information form the automatic repeat request acknowledgment message. | 12-15-2011 |
20110299423 | SYSTEM AND METHOD FOR QOS SUPPORT IN UBIQUITOUS SENSOR - The present invention relates to a system and to a method for QoS (Quality of Service) support in a ubiquitous sensor network. The system for QoS support in a ubiquitous sensor network includes a mesh coordinator and nodes. The mesh coordinator organizes a super frame containing a dedicated QoS data transmission period, and synchronizes each of the nodes constituted into one network with the abovementioned super frame. The nodes create a beacon frame containing information on whether or not to set QoS, to broadcast the beacon frame in a dedicated beacon period of the super frame if QoS data transmission is needed, to create a QoS data frame with a set priority, and to transmit the QoS data frame to the dedicated QoS data transmission period of the super frame in the case of transmitting QoS data. The present invention divides QoS data from general data to improve the quality of data transmission and ensure stability, and prioritizes QoS data to transmit the most important data among QoS data in a quick and stable manner. | 12-08-2011 |
20110276482 | SYSTEM AND METHOD FOR IDENTIFYING MULTIPLE TYPES OF ELECTRONIC MONEY, AND APPARATUS APPLIED THERETO - The present disclosure relates to a system and method for identifying multiple types of electronic money, and an apparatus employing the same. The system for identifying multiple types of electronic money includes an electronic money terminal apparatus capable of identifying various types of electronic money and providing an electronic money service, including charging, payment, and transfer of electronic money | 11-10-2011 |
20110276476 | SYSTEM FOR SENDING ELECTRONIC MONEY AND METHOD FOR SENDING ELECTRONIC MONEY - A system for remitting electronic money and a method for remitting electronic money, by which subscriber identification information of each user can be used as a virtual electronic money account and electronic money can be conveniently exchanged/remitted between different countries by using the subscriber identification information. | 11-10-2011 |
20110270746 | ELECTRONIC MONEY PAYMENT SYSTEM AND ELECTRONIC MONEY PAYMENT METHOD - The present disclosure relates to electronic money payment system and method which allows payment to be processed not only with a payment amount according to the currency of a user's electronic money but also with a payment amount according to any currency advantageous for payment among various payment amounts according to various types of currencies which are different from that of the user's electronic money, in consideration of the exchange rates. | 11-03-2011 |
20110268188 | BLOCK MODE ENCODING/DECODING METHOD AND APPARATUS, AND METHOD AND APPARATUS FOR IMAGE ENCODING/DECODING USING THE SAME - The present disclosure relates to method and apparatus for block mode encoding/decoding and a method and apparatus for video encoding/decoding using the same. The disclosure provides a block mode encoding apparatus that predicts the block mode of a current block and encodes the block mode of the current block depending on whether the block mode of the current block is same as the block mode predicted, to output encoded mode information. The disclosure can reduce the quantity of bits used to encode information on the block mode, thus enhancing the efficiency of video compression. | 11-03-2011 |
20110265186 | METHOD FOR PROTECTING A SOFTWARE LICENSE, SYSTEM FOR SAME, SERVER, TERMINAL, AND COMPUTER-READABLE RECORDING MEDIUM - The present disclosure relates to software license protection method, system, and medium readable by server, terminal, and computer. The present disclosure provides a software license protection terminal comprising: a terminal communicator operated in association with a coupled dongle type token; a terminal controller for operating and controlling certain software by checking whether the token has the requisite seculet to run the software and if so, transmitting to the token an executive instruction to run the seculet, and receiving the executive result from the token to activate the specific software; and a terminal storage for storing the software. The disclosure achieves overcoming software vulnerabilities to reverse engineering to keep the customers from inconveniences of authentication inconveniences with typical online dependency. | 10-27-2011 |
20110263295 | SYSTEM AND METHOD FOR PROVIDING A SMART CARD-BASED WIDGET SERVICE, AND SMART CARD FOR THE SAME - A system and method provide a smart card-based widget service, and a smart card for the same. Status information including information about a service icon and an active status for at least one widget service embedded according to the specification of a user is set. A widget waiting screen image including the service icon of the widget service set in the active status is made and provided to the user terminal. A widget service corresponding to a specific icon is executed according to the selection of the user for the specific icon so that an execution screen image of the executed widget service is provided. A widget service for a waiting screen image is provided regardless of the type and the specification of a user terminal for the smart card. Even if the user terminal is replaced with new one, information of the smart card is maintained. | 10-27-2011 |
20110261960 | METHOD FOR ALLOCATING AUTHORIZATION KEY IDENTIFIER FOR WIRELESS PORTABLE INTERNET SYSTEM - A method and authentication apparatus for sharing information for identifying an Authorization Key (AK) with a Base Station (BS) in a subscriber station are provided. The method includes, in the subscriber station, sharing a root key with the BS by performing an authentication with the BS, sharing an AK derived from the root key with the BS, sharing an AK sequence number of the AK with the BS, and sharing an AK Identifier (AKID) of the AK with the BS. The AK sequence number is generated by a sequence number of the root key. The AKID is generated by a parameter including the AK, the AK sequence number, a Medium Access Control (MAC) address of the subscriber station, and a BS Identifier (BSID) of the BS. | 10-27-2011 |
20110255608 | METHOD AND APPARATUS FOR ENCODING/DECODING COLOR IMAGE - The present disclosure relates to a method and an apparatus for encoding/decoding a color image or video. The video encoding apparatus encodes a luminance component block for a current block of an image, performs a selection of a color format among a plurality of color formats to encode a chrominance component block for the current block of the image according to the color format upon selection, and generates and outputs a bitstream including the encoded luminance component block, the encoded chrominance component block, and information on the selected color format. The disclosure enables an improvement in compression performance by allowing encoding and decoding one video component image in various color formats. | 10-20-2011 |
20110246609 | SYSTEM AND METHOD FOR PLAYING BACK CONTENTS BASED ON SMART CARD, AND SMART CARD APPLIED TO THE SAME - Disclosed are a system and a method for playing back contents based on a smart card, and a smart card applied to the same. A browser of a user terminal using a smart card queries a multimedia source of a user existing within the smart card and the multimedia source is played back in real time through the user terminal. A streaming or downloading playback service is provided to provide the user terminal with the multimedia source in real time. | 10-06-2011 |
20110246343 | SYSTEM AND METHOD FOR PROVIDING SERVICE TO END TERMINAL THAT USES AUTHENTICATION INFORMATION OF ANOTHER MOBILE COMMUNICATION TERMINAL, SERVICE SERVER, MOBILE COMMUNICATION TERMINAL, END TERMINAL, AND STORAGE MEDIUM - The present invention relates to a system, a method, a service server, a mobile communication terminal, an end-point terminal, and a storage medium, for providing a service to an end-point terminal that uses authentication information of a mobile communication terminal to which it is not currently connected, wherein the end-point terminal is connected to a first mobile communication terminal and to a second mobile communication terminal through a short-range communication network and to a service server via the second mobile communication terminal. The end-point terminal uses the authentication information of the first mobile communication terminal and is connected to the service server which is connected to the first and second mobile communication terminals through the mobile communication network, for authenticating the end-point terminal that uses the authentication information of the first mobile communication terminal. | 10-06-2011 |
20110244827 | FEE CHARGING SYSTEM, FEE CHARGING METHOD, SERVICE SERVER, SERVICE PROVIDING METHOD, AND STORAGE MEDIUM - The present invention relates to a billing system, a billing method, a service server, a service providing method, and a storage medium. The billing system according to the present invention allows an end-point terminal to use a service although billing authentication information that the end-point terminal has is not billing authentication information of a currently connected mobile communication terminal, and the billing system comprises: a first end-point terminal connected to a service server via a first mobile communication terminal connected through a first short-range communication network, for using contents by using billing authentication information of a second mobile communication terminal; the first mobile communication terminal connected to the first end-point terminal through the first short-range communication network, connected to the service server through a mobile communication network, and connecting the first end-point terminal that uses the billing authentication information of the second mobile communication terminal to the service server; the second mobile communication terminal connected to the service server through the mobile communication network, for providing the first end-point terminal with its own billing authentication information; the service server connected to the first and second mobile communication terminals through the mobile communication network, for providing the contents to the first end-point terminal that uses the billing authentication information of the second mobile communication terminal; and a billing server for performing a billing process on the second mobile communication terminal if the service server transmits the contents to the first end-point terminal. | 10-06-2011 |
20110243229 | APPARATUS AND METHOD FOR IMAGE ENCODING/DECODING USING PREDICTABILITY OF INTRA-PREDICTION MODE - An apparatus and a method for video encoding/decoding using predictability of an intra-prediction mode are disclosed. The apparatus for encoding a video of the present disclosure includes: an intra-prediction mode determiner for determining an encoder prediction mode which is an intra-prediction mode of a current block of the video; an encoder for encoding a residual block generated by subtracting, from the current block, a predicted block generated by predicting the current block according to the encoder prediction mode; a mode information generator for generating mode information according to whether or not a video decoding apparatus is able to predict the encoder prediction mode; and an encoded data generator for generating encoded data including the encoded residual block and the mode information. The present disclosure can enhance compression in video encoding/decoding by using intra-prediction to predict the video with a minimum necessary bit rate. | 10-06-2011 |
20110235704 | MOTION PICTURE ENCODING/DECODING APPARATUS, AND METHOD AND APPARATUS FOR HYBRID BLOCK MOTION COMPENSATION/OVERLAPPED BLOCK MOTION COMPENSATION FOR SAME - A hybrid block motion compensation/adaptive overlapped block motion compensation apparatus for an encoding apparatus includes: a selector for selecting between a block motion compensation BMC and an overlapped block motion compensation OBMC with respect to a current block in units of pixels according to a set criterion; an adaptive motion compensator; a scan mode setter for scanning the current block in a plurality of set scan modes and establishing a scan mode causing a smallest number of transitions between the BMC and OBMC; and an information recorder for recording transition information at locations of the pixels corresponding to the transitions between the BMC and OBMC. A decoding apparatus is disclosed including: an interpreter for scan mode information of a current block and information about transitions between the BMC and OBMC for each of pixels of the current block; and an adaptive motion compensator for operating in units of the pixels. | 09-29-2011 |
20110223861 | SYSTEM, METHOD, SERVICE SERVER, AND END-POINT TERMINAL FOR PROVIDING RELEVANT SOUND CONTENT - The present invention relates to a system and method for providing relevant sound content from an end-point terminal. The invention enables music files in the end-point terminal to be utilized in various kinds of sounds used while using a mobile communication terminal with the system including the end point terminal, the mobile communication terminal, and a service server. The mobile communication terminal is connected to the end-point terminal through a local area network and to the service server through a mobile communication network and is in charge of data transmission between the end-point terminal and the service server for downloading the relevant sound content from the service server which transmits the relevant sound content corresponding to the music file to the mobile communication terminal. | 09-15-2011 |
20110219095 | SYSTEM FOR PROVIDING RELATED CONTENT, METHOD FOR PROVIDING RELATED CONTENT, SERVICE SERVER, END TERMINAL, AND STORAGE MEDIUM - A system and method for providing a related content and a service server, an end terminal, and a storage medium wherein the system comprises a first end terminal connected to a mobile communication terminal through a local area network for making a request to an application server to send the content related to the basic content currently being played in the first end terminal to a second terminal; a mobile communication terminal connected to the first end terminal and to the second end terminal via the local are network, and connected to the service server via the local area network, and connected to the service server via a mobile communication network for transmitting data between the end terminals and the service server and the application server and wherein the service server receives the related content transmission request from the first end terminal and makes a request to the application server to search for the related content for transmission by the application server to the second end terminal in accordance with the request from the service server. | 09-08-2011 |
20110211640 | METHOD AND APPARATUS FOR ENCODING MOTION VECTOR, AND METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE USING SAME - A method and an apparatus for encoding a motion vector, and a method and an apparatus for encoding/decoding an image using the same are closed. The apparatus includes: a prediction candidate selector for selecting one or more motion vector prediction candidates; a predicted motion vector determiner for determining a PMV among the one or more motion vector prediction candidates; and a differential motion vector encoder for calculating a differential motion vector encoder for calculating a DMV by subtracting the predicted motion vector having been determined, from the current motion vector, and encoding the d having been calculated. The apparatus encodes a motion vector by using the prediction motion vector which is more accurately predicted, and reduces an amount of bits required for encoding information of the predicted motion vector, thereby improving the compression efficiency. | 09-01-2011 |
20110210875 | ENCODING METHOD AND ENCODING APPARATUS FOR B-TRANSFORM, AND ENCODED DATA FOR SAME - The present disclosure relates to an encoding method and to an encoding apparatus for B-transform, and to encoded data for same. The apparatus is for encoding input data and includes: a B-transform unit for performing a B-transform on the input data to generate a binary expression; and an encoder for removing one or more binary symbols from the binary expression and scanning the binary expression with the one or more binary symbols removed to generate a bitstream. According to the present disclosure, it is possible to encode uniform distribution data efficiently, and using the B-transform by its characteristics for reducing the bit number in the generation of the binary expressions from the B-transform operation on the uniform distribution data enhances the data compression performance. | 09-01-2011 |
20110208825 | SYSTEM, A METHOD, A SERVICE SERVER, A MOBILE TERMINAL AND A STORAGE MEANS FOR CONTENTS DELIVERY - Disclosed herein are a system and method for transmitting content, a service server, a mobile communication terminal and a storage medium. The system includes an end device connected to a first mobile communication terminal via a local area communication network, and configured to transmit content to be transmitted to a second mobile communication terminal, together with a message transmission request, to the first mobile communication terminal; and the first mobile communication terminal connected to the end device via the local area communication network, connected to a service server via a mobile communication network, and configured to display a message transmission window for inputting a message and a recipient's number on a screen when the message transmission request is received from the end device, and to transmit a Multimedia Message Service message (MMS), to which the content received from the end device is attached, to the second mobile communication terminal. | 08-25-2011 |
20110207528 | GAME SUPPLY SYSTEM USING PERSONAL AREA NETWORK, A GAME SUPPLY METHOD THEREBY, A SERVICE SERVER, A RELAY METHOD, A MOBILE PHONE AND A STORAGE MEANS - The present invention relates to a game supply system and method using a personal area network, a service server, a game relay method, a mobile communication terminal, and a storage medium. The game supply system includes a first end terminal ( | 08-25-2011 |
20110207445 | METHOD FOR PROVIDING CONTENTS IN A MOBILE COMMUNICATION SYSTEM AND APPARATUS THEREOF - A method for providing contents in a mobile communication system and apparatus thereof. The apparatus includes a contents provider access unit for responding to an inquiry request related to a service provision using contents providing terminal connected through a communication network and managing a rule related to the contents providing terminal and a connection and an inquiry request of the contents providing terminal; a central management unit for managing a predetermined service, apparatus information of a subscriber terminal and an operation and an authentication of the service based on a data inputted from a contents providing terminal connected through the contents provider access unit; and a transmission unit for receiving terminal information of a subscriber affiliated with the service and transmitting a menu of the service and contents in accordance with an apparatus of many piece of the terminal information of a subscriber affiliated with the service. | 08-25-2011 |
20110207403 | SYSTEM AND METHOD FOR CONTROLLING LONG-DISTANCE END-POINT TERMINAL IN CPNS ENVIRONMENT, AND CPNS SERVER AND MOBILE COMMUNICATION TERMINAL FOR THE SAME - The present invention relates to a system and a method for long-distance control of an end-point terminal in a CPNS environment, and a CPNS server and a mobile communication terminal for the same. When receiving a request for information from the end-point terminal the CPNS server[:] performs an authentication procedure for receiving the information from the end-point terminal to the mobile communication terminal and requests and receives the information from the end-point terminal for providing the mobile communication terminal with the information. The mobile communication terminal: requests and receives the information from the end-point terminal through the CPNS server, and controls the operation of the corresponding end-point terminal by transceiving the information with the end-point terminal through the CPNS server. | 08-25-2011 |
20110206114 | MOTION PICTURE ENCODING/DECODING APPARATUS, AND APPARATUS AND METHOD FOR ADAPTIVE OVERLAPPED BLOCK MOTION COMPENSATION BY VARIABLE UNIT FOR SAME - The present disclosure relates to a video encoding/decoding apparatus, and apparatus and method for adaptive overlapped block motion compensation by variable units for same. The apparatus and the method for adaptive overlapped block motion compensation by variable units, according to the present disclosure, when conducting a motion compensation, enable an encoder to perform an adaptive overlapped block motion compensation for a plurality of predetermined scan modes and sampling modes, and enable the encoder to calculate the computation volume occurring in said compensation and residual pixel energy, estimate the performance for each mode based on the calculation, determine an optimum scan mode and an optimum sampling mode, thus enabling a decoder to perform a motion compensation with optimum performance and less computing volume based on the determined mode. | 08-25-2011 |
20110201310 | CONTENTS PROVIDING SYSTEM AND METHOD FOR PROVIDING DATA SERVICES THROUGH SHORT-RANGE WIRELESS COMMUNICATION NETWORK, AND CPNS SERVER AND MOBILE COMMUNICATION TERMINAL FOR THE SAME - The present invention relates to a contents providing system and method for providing data services through a short-range wireless communication network, and a CPNS server and a mobile communication terminal for the same. The contents providing system includes the CPNS server, the mobile communication terminal and an end-point terminal. When the end-point terminal is initially connected to the mobile communication terminal through the short-range wireless communication network, the CPNS server registers information on the end-point terminal as connection history information by matching the end-point terminal information to a corresponding mobile communication terminal. The CPNS server provides response information if either an end-point terminal information request or a contents information request is received from the mobile communication terminal. The mobile communication terminal is connected to at least any one of a plurality of adjacent end-point terminals through the short-range wireless communication network. If a contents transfer request key signal is received while a mobile WEB or WAP service is used, the mobile communication terminal transmits corresponding contents that are played back when the contents transfer request key signal is received to the end-point terminal. The end-point terminal transmits and receives information to and from the mobile communication terminal through the short-range wireless communication network. Therefore, the present invention is effective in that an end-point terminal that does not have a communication function can be provided with specific contents requested by a user while a mobile WEB or WAP service is used on a mobile communication terminal. | 08-18-2011 |
20110200113 | METHOD AND APPARATUS FOR GENERATING A REFERENCE FRAME AND METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE USING THE SAME - An apparatus for generating a reference frame is disclosed including: an interpolation unit for interpolating a reference frame per fractional pixel; a virtual encoder for determining a block mode of a current frame and a motion vector according to the block mode by using an interpolated reference frame; an offset calculator for calculating an offset for each pixel of the interpolated reference frame by using the block mode and the motion vector; and an offset adder for generating an offset interpolated reference frame by adding the offset for each pixel to each pixel of the interpolated reference frame. By adding the offset calculated according to the block mode to the reference frame for the inter prediction and making the reference frame to be used for the motion estimation and compensation similar to the current frame to be encoded, motion prediction is accurate and compression efficiency is improved. | 08-18-2011 |
20110200112 | METHOD AND APPARATUS FOR ENCODING/DECODING MOTION VECTORS OF MULTIPLE REFERENCE PICTURES, AND APPARATUS AND METHOD FOR IMAGE ENCODING/DECODING USING THE SAME - A motion vector encoding apparatus includes: an optimum motion vector determiner for determining optimum motion vectors for multiple reference pictures with respect to a current motion vector of a current block; a motion vector encoding mode determiner for determining a motion vector encoding mode according to whether a motion vector decoding apparatus can predict the optimum motion vectors for the multiple reference pictures; and a motion vector encoder for generating and encoding motion information on the multiple reference pictures by using the optimum motion vectors for the multiple reference pictures or preset default motion vectors for the multiple reference pictures according to the motion vector encoding mode, and generating motion vector encoded data by encoding the motion vector encoding mode. The motion vector encoding apparatus can more accurately predict a predicted motion vector of the current motion vector for multiple reference pictures, so as to improve the compression efficiency. | 08-18-2011 |
20110200103 | VIDEO ENCODING/DECODING APPARATUS, DE-BLOCKING FILTER AND FILTERING METHOD BASED ON INTRA-PREDICTION DIRECTIONS FOR SAME, AND RECORDING MEDIA - A video encoding/decoding apparatus, a deblocking filter and filtering method based on intra-prediction directions for same, and recording media are disclosed, and the deblocking filter includes: a boundary strength determiner for determining strength of boundary of current block; an intra-block identifier for confirming intra-block identity of a subblock enclosing first pixel at a certain location with reference to the boundary; an intra-prediction direction identifier for identifying an intra-prediction direction of the subblock if the subblock is identified as an intra-block; a filtering pixel selection unit for selecting pixels for filtering based on the first pixel and the identified intra-prediction direction; and a filtering unit for filtering in horizontal direction, vertical direction, or diagonal direction depending on the intra-prediction direction and relationships between pixel values of the selected pixels to eliminate deblocking artifacts within diagonal edges at a boundary between blocks by deblocking filtering in the intra-prediction direction. | 08-18-2011 |
20110200100 | MOTION PICTURE ENCODING/DECODING APPARATUS, ADAPTIVE DEBLOCKING FILTERING APPARATUS AND FILTERING METHOD FOR SAME, AND RECORDING MEDIUM - A video encoding/decoding apparatus, an adaptive deblocking filtering apparatus and a filtering method for same, and a recording medium are disclosed. The filtering apparatus includes: a boundary strength determiner for determining strength of boundaries between subblocks of current block; a direction selector for selecting multiple directions preset with reference to the boundary sequentially; a filtering pixel selector for selecting pixels for filtering based on selected directions; a filtering determiner for determining whether to perform the filtering for the selected directions depending on relationships between pixel values of selected pixels; and a filtering unit for filtering the selected pixels in the selected directions depending on the determination of whether to perform filtering to apply pixel-wide deblocking filtering in a plurality of directions as well as in vertical and horizontal directions, thus effectively removing block distortions resulting from a diagonal discontinuity caused byedges in a plurality of diagonal directions. | 08-18-2011 |
20110200099 | IMAGE ENCODING/DECODING METHOD AND DEVICE USING COEFFICIENTS OF ADAPTIVE INTERPOLATION FILTER - An image encoding/decoding method and apparatus using coefficients of an adaptive interpolation filter are disclosed including: a coefficient calculator for calculating adaptive interpolation filter coefficient of a current frame; an image encoder for interpolating reference frames using the adaptive interpolation filter coefficient of the current frame and encoding the current frame using the interpolated reference frames; a filter flag encoder for generating and encoding a coefficient-inserted flag or coefficient non-inserted flag as a filter flag according to the adaptive interpolation filter coefficient of the current frame; a coefficient encoder for encoding the adaptive interpolation filter coefficient of the current frame when the filter flag is a coefficient-inserted flag; and a bit stream generator for generating and outputting a bit stream, which includes the encoded current frame and encoded filter flag, and further includes encoded adaptive interpolation filter coefficient of the current frame when the filter flag is the coefficient-inserted flag. | 08-18-2011 |
20110200098 | VIDEO ENCODING/DECODING APPARATUS AND ADAPTIVE OVERLAPPED BLOCK MOTION COMPENSATION METHOD AND APPARATUS EMPLOYING ADAPTIVE WEIGHTS THEREFOR - The present disclosure provides an adaptive overlapped block motion compensation apparatus employing adaptive weights including: an R | 08-18-2011 |
20110194507 | METHOD FOR SCHEDULING TRAFFIC OF HOME NODE, AND APPLIED TO THE SAME - Disclosed are a method of scheduling traffic at a home node and an apparatus employing the same. The home node integrated with the femtocell function to interwork with a mobile phone, the home gateway function to control electronic devices, and a set-top box function schedules traffic data transmission according to the characteristics of available services, thereby ensuring the optimum QoS (Quality of Service) according to the service characteristics. Accordingly, the QoS of mobile communication services requiring real time is ensured independently from that of Internet application services. Priorities are assigned to Internet application services according to the characteristics thereof, so that data requirements are satisfied according to services. | 08-11-2011 |
20110185098 | MEMORY CARD SUPPLEMENTED WITH WIRELESS COMMUNICATION MODULE, TERMINAL FOR USING SAME, MEMORY CARD INCLUDING WPAN COMMUNICATION MODULE, AND WPAN COMMUNICATION METHOD USING SAME - A memory card with a wireless communication module attached and its associated terminal for using the memory card are disclosed. A memory card that provides both of an external memory to an information communication terminal and a connectable memory card WPAN add-on to an information communication terminal lacking a built-in wireless communication module, and its associated information communication terminal are disclosed. According to the disclosure, the memory card with the extra wireless communication module adds the WPAN function to the information communication terminal lacking a built-in wireless communication module by inserting it into a card slot of the terminal, protecting the wireless communication module from external impacts and permitting the module to be left and secured inside the terminal at the card slot without a concern to lose such a module. | 07-28-2011 |
20110183760 | SYSTEM AND METHOD FOR EFFICIENT TRANSMISSION OF DATA DURING TEAM GAME IN CPNS ENVIRONMENT, AND CPNS SERVER, MOBILE COMMUNICAITON TERMINAL, AND END-POINT TERMINAL FOR THE SAME - A system and a method for efficiently transmitting data during a team game in a CPNS environment, and a CPNS server, a mobile communication terminal, and an end-point terminal for the same. The CPNS server stores and manages information about both the end-point terminal and the mobile communication terminal, wherein the end-point terminal communicates with the mobile communication terminal through a wireless local area network and the mobile communication terminal executes the team game through the wireless local area network, and classifies and processes data to transmit only the required game-related data to the mobile communication terminal and the end-point terminal respectively. | 07-28-2011 |
20110182561 | SYSTEM AND METHOD FOR CONTINUOUS PLAYING OF MOVING PICTURE BETWEEN TWO DEVICES - The present invention relates to a system and method for playing an identical moving picture on different types of devices, in which one terminal registers both a moving picture played thereon and the play information thereof in a server, and another terminal can download the moving picture and the play information from the server and continuously play the moving picture from a scene at which the playing thereof had previously been terminated. A server according to the present invention includes a communication unit ( | 07-28-2011 |
20110182523 | METHOD AND APPARATUS FOR IMAGE ENCODING/DECODING - A method and an apparatus for image encoding/decoding are disclosed. The apparatus includes: a block decomposer for decomposing a current block into a plurality of sub-blocks; and an intra prediction encoder for performing an intra prediction encoding by referring to already encoded and decoded adjacent pixel information of each sub-block, based on an intra prediction mode equal to an intra prediction mode of the current block, thereby generating a bit stream for the current block. In image encoding and image decoding, when a current block to be encoded or decoded is predicted, the disclosed method and apparatus can improve the accuracy of the prediction, which can provide an image with a satisfactory reproduction quality by improved coding efficiency. | 07-28-2011 |
20110182362 | METHOD AND APPARATUS FOR MOTION VECTOR ENCODING/DECODING USING A PLURALITY OF MOTION VECTOR ESTIMATIONS, AND METHOD AND APPARATUS FOR IMAGE ENCODING/DECODING USING SAME - The present disclosure relates to a method and an apparatus for motion vector encoding/decoding through estimations of multiple motion vectors, and to a method and an apparatus for video encoding/decoding using the same. The disclosure provides a motion vector encoding apparatus including a motion vector estimator for estimating a plurality of motion vectors with estimating one of the plurality of motion vectors as a motion vector of a current block and estimating the remaining motion vectors by one or more predefined estimation criteria in agreement with a video decoding apparatus; and a motion information encoder for encoding motion information generated by using the plurality of motion vectors. According to the disclosure, estimations are enabled by using more accurate motion vectors while reducing the bit rate for encoding the motion vectors leading to an improvement of the compressing efficiency. | 07-28-2011 |
20110182358 | WAVELET TRANSFORM APPARATUS AND METHOD BASED ON PREDICTION-UPDATE LIFTING SCHEME, AND ADAPTIVE PREDICTION APPARATUS AND METHOD AND RECORDING MEDIUM FOR THE SAME - The present disclosure relates to a wavelet transform apparatus and method based on a prediction-update lifting scheme, and an adaptive prediction apparatus and method and a recording medium for the same. The disclosure comprises the steps of: setting first updated even polyphase samples influenced when being updated from corresponding odd polyphase samples, setting plural candidate groups for prediction direction based on the set first updated even polyphase samples, selecting a first prediction direction from the candidate groups to minimize the energy in a high band, obtaining a first prediction value based on the first prediction direction and the updated even polyphase samples corresponding to the first prediction direction, and obtaining residual odd polyphase samples by deducting the first prediction value from the corresponding odd polyphase samples. Therefore, the present disclosure is able to increase encoding efficiency by minimizing energy transfer to a high band signal when removing the spatial correlation within an image using a directional wavelet transform designed based on the prediction-update lifting scheme. | 07-28-2011 |
20110182357 | INTRA PREDICTION METHOD AND APPARATUS, AND IMAGE ENCODING/DECODING METHOD AND APPARATUS USING SAME - The present disclosure relates to an intra prediction method and apparatus and an image encoding/decoding method and apparatus using the same. The disclosure provides the intra prediction apparatus that predicts the pixel values of respective pixels in a current block by weight-averaging the pixel values of one or more adjacent pixels in neighboring blocks to the current block according to the distances between each pixel in the current block and the adjacent pixel(s). According to the disclosure, the current block to be encoded can be predicted more accurately so that the encoding efficiency is improved by reducing the difference between the original block and the predicted block, and thereby video compression efficiency can be improved. | 07-28-2011 |
20110182355 | APPARATUS AND METHOD FOR DETERMINING ADAPTIVE FILTER TAP TO ENCODE WAVELET TRANSFORM COEFFICIENT, WAVELET TRANSFORM APPARATUS AND METHOD USING THE SAME, AND RECORDING MEDIUM FOR THE SAME - The present disclosure relates to an apparatus and method for determining an adaptive filter tap to encode a wavelet transform coefficient, a wavelet transform apparatus and a method using the same, and a recording medium for the same, wherein the filter tap is determined rendering the high-band energy to be minimized, based not only on whether an edge is present but also on the edge location so as to adaptively determine the filter tap for an efficient coding of the wavelet transform coefficient. Therefore, the disclosure is able to prevent ringing artifacts and increase coding efficiency while maintaining clear definition on the edges. | 07-28-2011 |
20110176608 | METHOD AND APPARATUS FOR DETERMINING INTRA PREDICTION MODE, AND METHOD AND APPARATUS FOR ENCODING/DECODING VIDEO USING SAME - Disclosed are a method and apparatus for determining an intra prediction mode, and for encoding/decoding video using the same. An apparatus for determining an intra prediction mode is provided, the apparatus comprising a calculator to calculate a variation of adjacent pixels to a current block; a threshold setter to set a threshold to evaluate the pixel variation; a comparator to compare between the variation and the threshold; a first prediction mode determination unit to determine a single predetermined prediction mode to be an optimal prediction mode if the variation is below the threshold; and a second prediction mode determination unit to determine a particular prediction mode from a plurality of prediction modes to be the optimal prediction mode through a rate-distortion optimization by performing intra predictions in the plurality of prediction modes if the variation is greater than or equal to the threshold. | 07-21-2011 |
20110176607 | IMAGE ENCODING/DECODING METHOD AND APPARATUS USING BLOCK TRANSFORMATION - Video encoding/decoding method and apparatus using a block transformation are disclosed. The apparatus encodes the video through predicting each pixel in a current block of the video by using one or more adjacent pixels, which are encoded prior to encoding the current block and have the closest proximity to the pixels respectively in a predetermined prediction direction, and wherein the current block is sized L×M with L being unequal to M. It has become possible to predict the pixels in the block starting from closest one of the pixels in the prediction direction in order to provide more accurate block predictions and then raise the compression efficiency that leaps to more efficient video encoding/decoding performance. | 07-21-2011 |
20110176605 | VIDEO ENCODING AND DECODING APPARATUS AND METHOD - Video encoding and its corresponding decoding are disclosed. The video encoding incorporates: a predictor for predicting a pixel value of each pixel in a current block of the video to generate a predicted pixel value; a subtractor for calculating a difference between an original pixel value of the pixel in the current block and the predicted pixel value of the pixel in the current block to generate a residual signal; a transformer for transforming the residual signal into frequency coefficients; a quantizer for quantizing the transformed frequency coefficients; and an encoder for encoding the quantized frequency coefficients by using one of different variable length coding tables. | 07-21-2011 |
20110171951 | MOBILE PHONE FOR CONTROLLING DIVERSITY - A mobile phone to transmit and receive a radio frequency signal through a first antenna and a second antenna in a radio communication system includes a first radio frequency signal receiving unit to convert the radio frequency signal received through the first antenna into a baseband signal to be transmitted to a controller, a second radio frequency signal receiving unit to convert the radio frequency signal received through the second antenna into a baseband signal to be transmitted to the controller, and a radio frequency signal transmitting unit to convert a baseband signal transmitted from the controller into a radio frequency signal, to distribute the radio frequency signal, and to selectively output the distributed radio frequency signal to the first antenna and the second antenna. | 07-14-2011 |
20110171934 | METHOD OF PROVIDING COMMUNICATION FUNCTION FOR COMMUNICATION GROUP, AND MOBILE COMMUNICATION TERMINAL AND PRESENCE SERVER FOR THE SAME - A method for providing communication functions for frequent contacts, and a mobile communication terminal and a presence server for the same are disclosed. The mobile communication terminal includes: a storage for storing a communication program for registering frequent contacts; a display for outputting the communication program; a key input unit for receiving an input of a key or a command; and a controller for executing the communication program to display icons of members registered with the frequent contacts, output a list of contact function icons for a selected member in the frequent contacts, and perform the contact function corresponding to a contact function selection from an updated list of the contact function icons with respect to a selected member, wherein the updated list includes an added or changed contact function that is made in a contact function edit mode. | 07-14-2011 |
20110170601 | METHOD FOR ENCODING/DECODING MOTION VECTOR AND APPARATUS THEREOF - A method for encoding/decoding a motion vector and an apparatus thereof are disclosed. The method includes defining a candidate motion vector set with respect to a current motion vector; selecting a predicted motion vector from the candidate motion vector set; determining a predictability of the predicted motion vector in a decoding apparatus; encoding the current motion vector by using a motion vector prediction mode for indicating the predicted motion vector and the predictability, if the predictability is determined positive; and encoding the current motion vector by using a motion vector prediction mode for indicating a default predicted motion vector and an unpredictability, if the predictability is determined negative. According to the disclosure, it becomes unnecessary to directly notify of the predicted motion vector of the current motion vector to the decoding apparatus, and instead a predetermined shared function is provided to inform of or search the predicted motion vector. | 07-14-2011 |
20110169908 | MOBILE COMMUNICATION TERMINAL THAT DELIVERS VIBRATION INFORMATION, AND METHOD THEREOF - A mobile communication terminal and a method for transferring vibration information are disclosed. The mobile communication terminal detects a movement of the mobile communication terminal caused by a user of the mobile communication terminal during a voice communication between the mobile communication terminal and a call partner terminal, generates vibration information corresponding to the movement of the mobile communication terminal, and transmits the generated vibration information to the call partner terminal, or receives vibration information generated by a call partner terminal during a voice communication between the mobile communication terminal and the call partner terminal and generates vibration corresponding to the movement of the call partner terminal, so as to enable the user of the mobile communication terminal and the call partner in communication with each other to share their emotion and feelings through the vibrations of the mobile communication terminal and the call partner terminal. | 07-14-2011 |
20110158319 | ENCODING SYSTEM USING MOTION ESTIMATION AND ENCODING METHOD USING MOTION ESTIMATION - Provided are an encoding system using motion estimation and an encoding method using motion estimation for achieving high-speed motion estimation according to a multi-processing unit. The encoding system using motion estimation, comprises a multi-processing unit calculating motion estimation on many macroblocks of an input image, a motion estimator estimating motion vectors of the macroblocks of the input image using the motion estimation on the plurality of macroblocks, previously calculated by the multi-processing unit, and an encoder encoding the image based on the motion vectors of the macroblocks, estimated by the motion estimator. According to the present invention, motion estimation to be used for motion estimation can be calculated in advance according to the multi-processing unit capable of processing high-speed parallel processing to reduce an image encoding time and improve an encoding speed. | 06-30-2011 |
20110158315 | DEVICE AND METHOD FOR IMAGE ENCODING/DECODING USING PREDICTION DIRECTION CONVERSION AND SELECTIVE ENCODING - The present disclosure relates to an apparatus and method for encoding/decoding videos using prediction direction change and selective encoding. The present disclosure provides a video encoding apparatus that encodes the current block of a video, comprising a rectangle encoder for dividing and then successively encoding the current block at input into rectangular block units to output a rectangularly encoded bitstream; a square encoder for encoding the current block at input in square block units to output a squarely encoded bitstream; and an encoding selector for calculating the encoding costs of the rectangularly encoded bitstream and the squarely encoded bitstream so as to output the bitstream with a minimum encoding cost. According to the present disclosure, the prediction accuracy may be increased when encoding or decoding videos so that video encoding efficiency can be improved. | 06-30-2011 |
20110150087 | METHOD AND DEVICE FOR IMAGE ENCODING/DECODING USING ARBITRARY PIXELS IN A SUB-BLOCK - A video encoding/decoding method and apparatus using arbitrary pixels in each sub-block are disclosed. The present disclosure comprises an extractor, a first predictor, a first subtractor, a first transformer, a first quantizer, a first inverse quantizer, a first inverse transformer, a first adder, a second predictor, a second subtractor, a combiner for combining arbitrary residual pixels, a second transformer, a second quantizer, and an encoder whereby arbitrary pixels may be extracted from the respective sub-blocks of a current block and then encoded and decoded into reconstructed arbitrary pixels, which are used to predict and encode the remaining pixels of the respective sub-blocks. According to the disclosed encoding and decoding of a video, an intra prediction of pixels in a block to currently encode or decode is improved in accuracy to increase the video coding efficiency. | 06-23-2011 |
20110149931 | CONTENTS SUPPLY SYSTEM, A METHOD, A SERVICE SERVER, A STORAGE MEANS, A RELAY METHOD, AN APPLICATION SERVER AND A CELLULAR PHONE FOR MULTI CONNECTED END TERMINAL - Disclosed herein are a system and method for providing content to a plurality of end terminals, a service server, a content relay method, an application server, a content provision method, and a mobile communication terminal. The system includes a plurality of end terminals connected to a mobile communication terminal via a Local Area Network (LAN), and configured to execute content received from an application server, a mobile communication terminal connected to a service server via a mobile communication network, and configured to transfer content between the end terminals and the-service server, the service server connected to the application server, and configured to authenticate the end terminals and the mobile communication terminal and to request content, requested by authenticated end terminals, from the application server, and the terminal application server for providing the content, requested by the end terminals, to the service server. | 06-23-2011 |
20110149763 | SYSTEM FOR MEASURING THE TRANSMISSION BANDWIDTH FOR MULTIMEDIA STREAMING AND METHOD FOR SAME - A method and system for measuring a transmission bandwidth which includes: a server for transmitting packets of multimedia data to a receiving apparatus, receiving a time stamp from the receiving apparatus, calculating a transmission bandwidth in real time from the received time stamp, and streaming the multimedia data to the receiving apparatus in accordance with the calculated transmission bandwidth; with the receiving apparatus receiving packets of the multimedia data from the server, recording received time stamp for each of received packets, and transmitting the received time stamp to the server by a predetermined cycle. According to the present invention, transmission bandwidth is measured using data actually transmitted and that streaming of media is suited to a transmission bandwidth to meet QoS (Quality of Service) requirements. | 06-23-2011 |
20110138376 | INTERWORKING SYSTEM BETWEEN USER TERMINAL AND SMART CARD FOR EXECUTING WIDGET, AND METHOD THEREOF - Disclosed are an interworking system between a user terminal and a smart card for executing a widget and a method thereof. The interworking system is configured to enable the user terminal to manage the download setup information for a widget UI (user interface) program installed in the smart card. The user terminal is able to download widget UI data to be updated from a program provision server based on the download setup information even if there is no additional request from the smart card. Therefore, the system is able to prevent periodic communication between the user terminal and the smart card when updating the widget UI program. | 06-09-2011 |
20110135089 | IMAGE ENCRYPTING/DECRYPTING SYSTEM AND METHOD - The present invention relates to an image encrypting/decrypting system and method devised in such a way that: a transmitter and a receiver for transmitting and receiving moving images share a seed for encrypting and decrypting the moving images; the transmitter transmits moving images after encrypting the moving images by dividing them into segment units and mixing the time sequencing of the images in each of the segments in accordance with a random number generated by means of the seed; and the receiver decrypts the moving images which it receives, by sorting them in segment units and then restoring the time sequencing of the images in each of the segments in accordance with the random number generated by means of the seed. The present invention makes it possible to effectively implement the function of encrypting after having carried out transcoding even in cases involving an alteration to the frame or an increase in resolution in an encrypted moving image, and also makes it possible to resolve the problem of having to encrypt/decrypt before/after carrying out transcoding in cases where a compressed moving image is being encrypted. | 06-09-2011 |
20110135002 | MOVING IMAGE CODING DEVICE AND METHOD - The present invention relates to a moving image coding apparatus and method involving the simultaneous parallel running of respective modules, namely: a segment-unit-coding module in which an input image frame is divided into segment units and the integer pel (integer pixel) motion is estimated while at the same time the 1/n pixel images are generated with respect to the segments of the image coded in the coding module; and a macroblock-unit-coding module in which the segments of the image frame whose the integer pel motion has been estimated in the segment-unit-coding module are received as input in the form of macroblock units and are coded in macroblock units through the 1/n pixel motion estimation. By separating the coding units into different modules and employing the techniques of parallel processing and pipelining, the present invention makes it possible to effect high-speed encoding with reduced delay in the coding rate due to differences in the processing speeds of the respective modules. | 06-09-2011 |
20110134971 | SYSTEM AND METHOD FOR DATA RECEPTION AND TRANSMISSION IN AUDIBLE FREQUENCY BAND - Disclosed are a system and a method for transceiving data in an audio frequency band. The system includes a data input unit to input data for acoustic communication into an audio signal, a transmitting unit to transmit the audio signal including the data in the audio frequency band, and a receiving unit that receives the audio signal including the data and performs synchronization of the audio signal through a matched filtering using a matched filter in order to extract the data according to predetermined extraction processing. The data to be transmitted are added to an audio signal and the audio signal is transmitted in the audio frequency band, so that the data for the acoustic communication are effectively transmitted to the recipient in the audio frequency band. | 06-09-2011 |
20110125967 | INTERFACE SYSTEM BETWEEN A TERMINAL AND A SMART CARD, METHOD FOR SAME, AND SMART CARD APPLIED TO SAME - The present invention provides a system and method for interfacing between a terminal and a smart card, and a smart card applied to the same. In other words, by presenting the configuration including a terminal equipped with several device resources requested for interworking during the execution of the service applications stored in a smart card, and a Universal Subscriber Identification Module (USIM), and a smart card to prepare the selective execution of the application considering the service supportable terminal based on a device resource list created by the terminal, it is possible to provide suitable services to the terminal performance considering the difference in the mounted terminal model and manufacturer due to the selective executability according to the device resources with which the terminal is equipped with a number of service applications stored in the smart card. | 05-26-2011 |
20110125876 | MANAGING METHOD AND APPARATUS FOR SERVICING CONTENTS PROVIDED BY CONTENT PROVIDER - A managing method and an apparatus for servicing contents provided by contents provider wherein the managing apparatus according to the present invention comprises: a contents provider management module for generating an account of a contents provider based on information of the contents provider transmitted from the contents providing apparatus; a contents management module for managing a contents connection point for connecting to the contents provided from the contents providing apparatus and for managing information relative to the contents; and a menu management module for registering menus including a menu connected to the contents connection point and for managing a connection authority to a name of the menu and the menu, such that a collective management on the contents providers is possible and the contents providers can conveniently provide contents services to subscribers. | 05-26-2011 |
20110122174 | COLOR ELECTRONIC PAPER USING RGBW COLOR PARTICLES AND DRIVING METHOD THEREOF - A color electronic paper using RGBW color particles and a driving method thereof are provided. | 05-26-2011 |